Last week 3/5 of the students in mr.zankers class went on a field trip 7/10 of the students in mr haynes class went what is the average fraction of the students in the two classes who went on the field trip

Answers

Answer 1

Answer:

[tex]\dfrac{\dfrac{3}{5}x + \dfrac{7}{10}y}{x + y}[/tex]  

where x = number of students in Zankers class and y = number of students in Haynes' class

If the number of students in these classes are equal then the average fraction is 13/20

Step-by-step explanation:

Let x = number of students in Zanker's class

Then number of students who went for the trip is [tex]\dfrac{3}{5}x[/tex]

Let y  be the number of students in Haynes' clas

Number of students who went = [tex]\dfrac{7}{10}y[/tex]

Total number of students who went on the trip = [tex]\dfrac{3}{5}x + \dfrac{7}{10}y[/tex]

Total number of students in both classes = x + y

So average fraction

=
= [tex]\dfrac{\textsf {Total Number of Students On Trip}}{\textsf {Total Number of Students}}\\\\= \dfrac{\dfrac{3}{5}x + \dfrac{7}{10}y}{x + y}[/tex]

Without knowing how many students are in each class we can only come up with an equation

If we assume the same number of students in each class
Then we get total students who went on trip =  [tex]\dfrac{3}{5} N + \dfrac{7}{10}N[/tex][tex]= \left( \dfrac{3}{5} + \dfrac{7}{10}\right)N= \left(\dfrac{13}{10}\right)N[/tex]

where N = total number of students

Since the total in 2 classes is 2N the average fraction

[tex]= \left(\dfrac{13}{10}\right)N \div 2N = \dfrac{13}{20}[/tex]


Related Questions

Select the better deal in the pair. Then give the unit rate for the better deal.

$56/25 gal or $31.05/15 gal

Answers

The better deal of the given pair is $31.05/1. The unit rate is $2.07.

What is the better deal?

The better deal is the deal that has the lower unit rate. Unit rate is the price per gallon. The unit rate can be determined by dividing the total cost by the total gallons bought.

Division is the operation that is used in mathematics to determine the quotient of two or more numbers. Division entails grouping a number into groups using another number. Other operations used in mathematics are addition, multiplication and subtraction.

Unit rate = total cost / number of gallons

$56 / 25 = $2.24

$31.05 / 15 = $2,07

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assume that your compute completes a 5000 equation back substitution in 0.005 seconds. use the approximate operation counts n 2 for back substitution and 2n 3/3 for elimination to estimate how long it will take to do a complete gaussian elimination of this size.

Answers

In linear equation, 17 seconds it will take to do a complete gaussian elimination of this size.

What are a definition and an example of a linear equation?

A linear equation with one variable is one that contains just one variable. It has the formula Ax + B = 0, with A and B being any two real numbers and x being an ambiguous variable with only one possible value. One such linear equation in one variable is 9x + 78 = 18.

Given that your computer completes a 5000 equation back substitution in 0.005 seconds.

then here Work is: n = 5000 and its rate is = (n2) / 0.005 = 5000000000

and Given formula : The approximate operation counts = ((2n^3)/3) = (2.0 * (n3)) / 3.0 = 83333333333.33

then we can found time = operations / rate = 83333333333.33/5000000000 = 16.67 = 17 seconds

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whats the answer to this combined terms
y−(−3y)

Answers

Answer:

Add y and 3y

= 4y

Step-by-step explanation:

The graph shows the temperature of ice cream in an ice chest during an overnight trip. What is the domain of this function?


The domain is negative 10 through 30.

The domain is all integers from negative 10 through 30.

The domain is all real numbers 0 through 30.

The domain is all integers from 0 through 30.

Answers

The domain of this function is that: C. the domain is all real numbers 0 through 30.

What is a domain?

A domain can be defined as the set of all real numbers for which a particular function is defined. This ultimately implies that, a domain is the set of all possible input numerical values (numbers) to a function and the domain of a graph comprises all the input numerical values which are shown on the x-axis.

How to identify the domain of this graph?

The horizontal extent of a graph represents all domain values and they are read and written from smaller to larger numerical values, and from the left of a graph to the right.

By critically observing this graph of a function shown, we can reasonably infer and logically deduce the following:

Domain = (0, 30).Range = (-10, 30).

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Alice, raul, and jane are baking cookies together, alice brought 2.5 cups of flour, raul brought 1 1/4 cups of flour and jane brought 3/4 cups of flour. how many cups of flour they have all together? show all work.

Answers

The total cups of flour Alice, Raul and Jane have altogether is equal to 6.

We can determine the number of cups of flour they have all together by the addition of the fractions brought by each one of them.

First, we convert the decimal value of 2.5 into fraction form;

2.5 = 2.5/1

Multiplying and dividing both sides by 10;

25/10 = 5/2

Now we add the fractions as follows;

Total number of cups of flour = 5/2 + 11/4 + 3/4

We Multiply 5/2 by 2 to get the same denominator as the other values;

5×2 / 2×2 = 10/4

10/4 + 11/4 + 3/4 = 6

Therefore, the total number of cups of flour they have altogether is calculated to be 6.

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I don't understand what I'm doing, I'm confused irritated and I just need some help

Answers

Answer:

See explanation

Step-by-step explanation:

Slope: 4 since $4 was made per ticket. $4/1=$4.

Equation: y=mx+b

0=4(0)+b ==> the function has a point on the origin, (0,0).

0=0+b

b=0

y=4x+0

y=4x ==> equation of line

Answer:

day 1:  $4

day 2: $8

day 3: $12

day 4; $16

Step-by-step explanation:

y= 4x

cuz you add 4 each time

Use the Law of Detachment to make a conclusion. If a person wants to get a car, that person must buy car insurance. Jayla wants to get a car. A. Jayla has car insurance. B. Jayla has her driver's license. C. Jayla must get her driver's license. D. Jayla must buy car insurance.

Answers

According to the law of detachment, if a person wants to get a car, that person must buy car insurance, since Jayla wants to get a car, D. Jayla must buy car insurance.

What is the law of detachment?

It should be noted that the law of detachment states that if P leads to Q and Q is true, then Q must be true.

In this case, if a person wants to get a car, the person must buy car insurance. Without this it's impossible to buy the car. Therefore, this illustrates that the correct option is that Kayla must also get the insurance.

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What does y-7 equal

Answers

Answer:

-7

Step-by-step explanation:

Because picture y with a 1 in front of it the divide -7 by 1 and you get -7

hey yall my question is: how do u divide 5 600 in the ratio:
4: 5: 7

:)​

Answers

explanation

4/16×5600=1400

5/16×5600=1750

7/16×5600=2450

therefore first ratio over total ratio multiplied by number. use the same approach for the others

Use the following function rule to find f(2).
f(x) = 4 + x
f(2)=

Answers

I’m assuming you just substitute 2 in the equation for x:
4 + x = 4 + 2 = 6

Answer = 6
f(x) is telling you that the x has no specific value, but if you make it f(2) now the x is telling you that it equals 2. so that leads you to adding 4+2 which is 6

4+2=6

29 less than -10 times a number is equal to -18 times the number plus 91

Answers

Answer:

-10x - 29 = -18x + 91

x = 15

Step-by-step explanation:

29 less than -10 times a number is equal to -18 times the number plus 91:

-10x - 29 = -18x + 91

add 21 to both sides:

-10x - 29 + 29 = -18x + 91 + 29

-10x  = -18x + 120

add 18x to both sides:

-10x + 18x  = -18x + 120 + 18x

8x = 120

divide both sides by 8:

8x/8 = 120/8

x = 15

one side of rectangle is 5cm than the other side. its perimeter is 38 cm. find the measure of the sides

Answers

The measure of the sides of rectangle is 14cm.

What is rectangle?

Each pair of neighboring sides in a rectangle are perpendicular, making it a special case of a parallelogram. A parallelogram is a specific type of trapezium, also referred to as a trapezoid in North America, in which the lengths of the two pairs of opposite sides are parallel. A quadrilateral with four right angles is a rectangle. It can alternatively be described as a parallelogram with a right angle or an equiangular quadrilateral, where equiangular denotes that all of its angles are equal. A square is a rectangle with four equal sides.

Given that,

One side of rectangle is 5cm than the other side.

Its perimeter is 38 cm.

P = 2b +2 h

38= 2b+ 2(5)

38= 2b+ 10

38-10= 2b

28= 2b

b = 28/2

b= 14cm.

Therefore, the measure of the sides is 14cm.

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as soon as possible please!

Answers

Answer:

C). [tex]1 - sec^{2} A[/tex]

Step-by-step explanation:

Lets say the bottom side is X, right side is Y, and hypotenuse is H.

[tex]tan A = \frac{Y}{X}[/tex]

[tex]tan B = \frac{X}{Y}[/tex]

[tex]\frac{tan A}{tan B} = \frac{\frac{Y}{X}}{\frac{X}{Y}} = \frac{Y}{X} * \frac{Y}{X} = \frac{Y^{2} }{X^{2}} = (\frac{Y}{X})^{2} = tan^{2} A= 1 - sec^{2} A[/tex]

The speed limit on a road is listed at 65 miles per hour. The car’s speedometer reads 63 miles per hour. Is it possible that this car is going over the speed limit?

Answers

It is not possible for the car to go over the speed limit as maximum error represent value of speed limit less than 65 miles per hour.

As given in the question,

Maximum error on the reading of speedometer =1.6%

Speed limit on a road is 65 miles per hour

Reading of a speedometer = 63 miles per hour

As per the error in the speedometer it can be more or less by 1.6%

To check speed limit

If it more

Speed limit  = 63 + (1.6% of 63)

                   = 63 + 1.008

                   = 64.008 miles per hour < 65 miles per hour

If it less

Speed limit = 63 - (1.6% of 63)

                   = 63 -1.008

                   = 61.992 miles per hour < 65 miles per hour

Therefore, it is not possible for the car to go over the speed limit as maximum error represent value of speed limit less than 65 miles per hour.

The complete question is:

The reading on a car speedometer has 1.6% maximum error the speed limit on a road is listed 65 miles per hour.

The car’s speedometer reads 63 miles per hour. Is it possible that this car is going over the speed limit?

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Guys help!!! I have to create a other title for the book The call of the wild. Help me figure out titles I should use and why. Write a well-developed paragraph explaining why the title you have chosen suits the book.

Answers

You do not need to listen to my opinion but I think another excellent title could be Survival (Man Vs Dog).

And so here is an explanation of this title: The book may be for young adults, but it truly shows a dark trip to human nature and a species that can be noble as well as cruel and insensitive. Buck, the protagonist, is a dog who has been kidnapped and placed as a sled dog in the 19 century Klondike Gold Rush. It is Buck's loyalty and instinct that helps him return to his owners which forms the plot of the story and the assumptions are able to make about the inhumanity of humans and the very real loyalty and humanity Buck shows.

Sorry for taking so long:)

the length of Michelle's room is shown. The ratio of length to width is 4:3. What is the width of Michelle's room?

it is 111

Answers

The width of Michelle's room is 111 inches.

How to find the width of a rectangle?

The ratio of the length to the width is 4:3.

The width of her room can be calculated as follows:

Therefore,

length = 12 ft 4 inches

Hence.

1 ft = 12 inches

12 ft = 144 inches

Hence,

length = 144 + 4 = 148 inches

Therefore,

x = length + width

4 / 7 × x = 148

4x / 7 = 148

cross multiply

4x = 148 × 7

4x = 1036

x = 1036 / 4

x = 259

Hence,

width of the rectangle = 259 - 148

width of the rectangle = 111 inches

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A bike was reduced by 20% in a sale. If it was £520 what was the original price

Answers

Answer:416

Step-by-step explanation:520x.8=416

Answer:

Original price = 416.

i hope this helps

Mia sells headbands for $8.50 each. The
situation can be represented by y = 8.50x
where x is the number of headbands sold and
y is the amount of money collected. Does this
situation represent a function?

Answers

Answer:

Yes

Step-by-step explanation:

This is a linear function, which you can see if you graph it.  It is in the form of y = mx + b where be = 0 and the slope is 8.5.

Angela, Emily, and Christina are on their school’s soccer team. The table below shows the number of shots each player made and missed.

Answers

The ratio of shots made to the shots missed for each player will be:

Angela = 4:1

Emily.= 3:1

Christina = 7:3

How to illustrate the ratio?

It should be noted that from the information given, Angela made 12 shots and missed 3 shots. Therefore the ratio is:

= 12/3

= 4/1

= 4:1

Emily made 15 shots and missed 5 shots. Therefore the ratio is:

= 15/5

= 3/1

= 3:1

Christina made 21 shots and missed 9 shots. Therefore the ratio is:

= 21/9

= 7/3

= 7:3

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Q.1. Solve the following equations:

i. 10 s + 100 = 1000
ii. 12 m - 5 = 25

Please explain properly and give step by step answer this question contains 20 points i will also mark u as brainliest

Answers

i) I WILL FIRST GROUP THE LIKE TERMS TOGETHER.

[tex]10s = 1000 - 100[/tex]

i)WHEN GROUPING LIKE TERMS 100 WAS GROUPED WITH 1000 SINCE IT CHANGED PLACE IT ALSO CHANGED THE SIGN FRKM POSITIVE TO NEGATIVE.

[tex]10s = 900[/tex]

NOW TO GET THE VALUE OF s it means we will have to divide both sides by the coefficient os s which is 10.Meaning 10 will divide 10s and also 900 we get:

[tex] \frac{10s}{10} = \frac{900}{10} \\ s = 90[/tex]

ii) WE ALSO HAVE TO GROUP TERMS HERE. IT MEANS -5 WILL BE GROUPED WITH 25 BUT WHEN IT CHANGES POISTION IT WILL ALSO CHANGE SIGN.

[tex]12m = 25 + 5 \\ 12m = 30 \\ \frac{12m}{12} = \frac{30}{12} \\ m= \frac{30}{12} \\ m = \frac{15}{6} [/tex]

1000-100=900.
10s=900
10s/10 900/10
s=90
25+5=30
12m=30
12m/12 30/12
m=2.5

write a mathematical sentence that expresses the information below use s as your variable mr.jones algebra class has too many students in it. if each class were split exactly

Answers

When the class were split exactly in equal parts to form 3 be classes each class would have no more than 14 students, the expression is s / 3 <= 14.

What is an expression?

It should be noted that an expression is simply used to illustrate the relationship between the variables that are given.

From the mr. Jones algebra class has too many students in it and each class were split exactly in equal parts to form 3 be classes each class would have no more than 14 students.

The expression will be let the total students be represented by s. This will be:

s / 3 <= 14

The expression is s / 3 <= 14.

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Write a mathematical sentence that expresses the information below use s as your variable mr.jones algebra class has too many students in it. if each class were split exactly in equal parts to form 3 be classes each class would have no ore than 14 students

the number of people arriving for treatment at an emergency room can be modeled by a poisson process with a rate parameter of five per hour. what is the probability that exactly four arrivals occur during a particular ""half an hour""?

Answers

There is a 0.087 = 8.73% chance that four arrivals will occur at the same half-hour.

What is defined as the Poisson's distribution?The Poisson is a discrete distribution that calculates the likelihood of a given number of events occurring in a given time period.The probability that X is the number of successes of a random variable in a Poisson distribution is given by the following formula:       P(X = x) = (e∧(-μ)× μˣ) / x!

In which case,

x represents the number of successes.

The Euler number is e = 2.71828 = 2.72

μ is the average over the given time interval.

With a rate parameter of five per hour, the Poisson process is used.

So, μ = 5

The likelihood of exactly four arrivals occurring at the same time;

This is known as P(X = 4).

Put the values in the formula;

P(X = x) = (e∧(-μ)× μˣ) / x!

P(X = 4) = (2.72∧(-5)× 5⁴) / 4!

Simplifying the equation;

P(X = 4) = 0.08736

P(X = 4) = 8.73%

0.087 = 8.73% chance that exactly four arrivals happen during a specific half -hour.

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- Graph the solution of the absolute
value inequality on the number
line.
2|x + 3|+1>3

Answers

Number line with open circles on -4 and -2, with shading in opposite directions.

Solution:

Given: 2 |x + 3| +1 > 3 absolute value inequality.

We must solve and graph the following absolute value inequality:

2 |x + 3| +1 > 3

Take a look at the following absolute value inequality: 2 |x + 3| +1 > 3

We have to apply absolute rule:

If |u| > a , a > 0 then u < -a or u > a.

2|x + 3|+1 < -3 or 2|x + 3|+1  >3

Consider inequality first.

2|x + 3|+1 < -3

When we subtract 1 from both sides, we get,

2|x + 3| +1 -1 < -3 -1

Simplify,

2 |x + 3| < -4

We get by dividing both sides by two,

(2|x + 3|)/2 < -4/2

|x + 3| < -2

There is no solution for x ∈ R.

Now consider the second inequity.

2|x + 3|+1  >3

When we subtract 1 from both sides, we get,

2|x + 3|+1 - 1  >3 - 1

Simplify,

2|x + 3|  >2

We get by dividing both sides by two,

(2|x + 3|) / 2  >3/2

|x + 3| > 1

x + 3 < -1 or x + 3 >1

x < -4 or x > -2

As a result, we have the solution to the absolute value inequality:

2|x +3|+1  > 3 as

On the number line shown below.

On the graph shown below.

As a result, the number line has open circles on -4and -2, with shading going in opposite directions.

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what is my name and my class

Answers

iyaazs humaizAnswer:

y-step explanation:

help me i don’t know how to do this help me please

Answers

Answer is EG = 9 m.

Step by step

We know the two triangles are similar
We are looking for EG (x)

Line AB is similar to EF with ratio 100/90
Line AC is similar to EG with ratio 10/x

So if they are similar we can do our equation as 100/90 = 10/x

Cross multiply

100x = 900

Divide both sides by 100 to solve for x

100/100 x = 900/100

x = 9

My triangles in my attachment are not drawn to size but this is how I find which sides are similar for my equation

I hope this helps

The scale on a map is 1 : 30000
What is the actual distance represented by 1 centimetre?

Answers

When the scale on a map is 1 : 30000, the actual distance represented by 1 centimetre is 300 meters.

How to calculate the distance?

It should be noted that in order to get the distance, we have to convert 1cm to meter. It should be noted that;

100cm = 1 meter

1cm = 1/100 = 0.01 meters.

Therefore, when the scale on a map is 1 : 30000, the actual distance represented by 1 centimetre will be:

= (0.01 × 300000)

= 300 meters.

Therefore, the distance is 300m

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A triangle is dilated by a factor of 2 and then rotated clockwise Which statement about the triangle's image and pre-image is correct?​

Answers

Answer:

what are th e statements though

15≥3x-3>-12
What would the answer to this be

Answers

Answer:

-3 < x ≤ 6

(-3, 6]

Step-by-step explanation:

15 ≥ 3x - 3 > -12

 +3       +3     +3

------------------------

18 ≥ 3x > -9

÷3    ÷3   ÷3

-------------------

6 ≥ x > -3

-3 < x ≤ 6

(-3, 6]

I hope this helps!

Toilet rolls come in a pack of 4 and 9 the 4-pack is priced at £2.04 and the 9- pack is priced at £4.68 . By calculating the price per roll, determine which pack is better value

Answers

4pack price plus 9pack price

so it implies that 2.o4+4.68=6.72

All of the following expressions represent the sum of n and itself, except.
O2n
On²
On+n

Answers

All of the following expressions represent the sum of n and itself, except

To solve his problem, we need a brief idea about algebraic operations like summation, multiplication, etc.

When we add two or more same algebraic digits we have to just add their coefficients. Otherwise, it remains the same.

Example :

x + 2x + 4x = 6x       [ 1 + 2 + 4 = 7; as 1,2,4 are the coefficient of x, 2x, 4x ] x + 2y + z = x + 2y + z ( remains unchanged as they all are different numbered )

Here 2n = n + n, the sum of n and itself but n² = n × n, which is the multiplication of n and itself,

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How does Nanoparticles in Medicine relate to quantum numbers Find the equation of the line passing through points (6,0) and (-1,14).Oy = 6xy = -2x + 12y = -2x + 14y = 2x + 10 help meeeeeee Write the verbal sentence as an equation or an inequality: Four is greater than six times a number t. The problem number is 2-32. The question is: Graph the rectangle with vertices at (2, 1),(2, 5), (7, 1), and (7, 5) Select a secondary character (Banquo, Macduff, Malcolm) and analyze the way in which he or she serves as a foil to a central character and thus help to expand your understanding by contrast. (A foil is a character who enhances another through contrast). You could also theoretically use Lady Macbeth as a secondary character to Macbeth assume you deposit $4,400 at the end of each year into an account paying 10.5 percent interest. requirement 1: how much money will you have in the account in 24 years? (enter rounded answer as directed, but do not use rounded numbers in intermediate calculations. round your answer to 2 decimal places (e.g., 32.16).) annuity future value $ requirement 2: how much will you have if you make deposits for 48 years? (enter rounded answer as directed, but do not use rounded numbers in intermediate calculations. round your answer to 2 decimal places (e.g., 32.16).) annuity future value $ True or false. An ion is an electrically neutral atom that has the same number of protons and neutrons PLEASE HURRY!Write the following expression using the fewest possible terms.(4x 15) + (17 + 7x)3x + (2)3x + 211x + (2)11x + 32 Harry Hydro drives to a local hydroponic supply store to purchase three high pressure sodium lights commonly used in the cultivation of hydroponic plants, including marijuana. Officer Nick Narc spots Harry coming out of the store with the lights, and follows Harry back to his house. As Harry is walking into his house, a stack of $100 bills falls out of Harrys pocket, which Nick Narc sees. Harry picks up the bills and walks into his house and locks the door. Moments later, Nick Narc kicks Harrys door down and begins searching the house without a warrant. Nick Narc finds 1,000 marijuana plants and arrests Harry. Harry will most likely challenge the search on what basis? Use the rate and the amount of water pumped after 13 minutes to find how much will have been pumped into pool after 14.5 minutes? The unit rate is 24 gal/min so 1.5 minutes after 13 minutes, an additional gallons will be pumped in Please help me with all Ill mark you brainly A wheel on Amanda's bicycle is 0.3 m in diameter. Amanda races the bicycle for 35 m. How many times does the wheel turn as the bicycle travels this distance?Use the value 3.14 for . Round your answer to the nearest tenth. Do not round any intermediate steps. What are two ways agricultural revolution had an impact on the environment D-A6 kg cart moving at 2 m/s hits another car that has a mass of 3 kg. What is the velocity of the second car after impact?(Use the conservation of momentum equation) The price of company stocks already trading on the stock market are determined by supplyand demand.TrueFalse Let America be America again ? Convert the measurement as indicated.11 ft=_yd_ft The enzymatic process illustrated here shows which kind of reaction? Find the slope of the line: Luna company accepted credit cards in payment for $6,000 of services performed during july. The credit card company charged luna a 4 percent service fee; it paid luna as soon as it received the invoices. Required based on this information alone, what is the amount of net income earned during the month of july?.