The test scores for 15 students are 72, 74, 74, 79, 82, 82, 82, 82, 86, 86, 86, 87, 87, 89, and 92. Find the mean of the data. Round your answer to two decimal places.

Answers

Answer 1
76.53 i’m pretty sure.
Answer 2

Answer:

82.67

Step-by-step explanation:

1240 divided by 15 = 82.66667

Plz if u would mark me as brainlest!


Related Questions

Mark is 8 inches shorter than two times the height of his little brother bryan. If mark is 52 inches tall , how tall is bryan?

Answers

Answer:

60 inches

Step-by-step explanation:

Mark: 52 inches

Bryan: x Inches

X: 52 + 8

52 + 8 = 60

x= 60

Bryan: 60 inches

because mark is 8 inches shorter so bryan is 8 inches taller.

A large water tank holds 600 gallons of water. It is losing water at the rate shown in the table.

Answers

Answer:

Part A - The answer is C

Part B - a.true, b.true, c.false, d.true.

Step-by-step explanation:

Part A

The slope shown on the table is -60 because the table shows that after each hour, the Gallons of Water decrease by 60.

Part B

a. The slope is -60 not -600, this was established on Part A.

b. We start off with 600 gallons of water. The equation is y = 600 - 60x. If we input 7 as x, we get 600 - 420 which is 180.

c. The initial value was 600, -60 is the slope.

d. As mentioned in b. of part B.

A linear function changes by a constant rate.

The slope is -60, and it represents the rate at which the amount of water changes hourly.The true statements are (b) and (d)The false statements are (a) and (c)

Two points on the table are given as:

[tex](x,y) = (0,600)\ (1,540)[/tex]

The slope (m) of the points is calculated as:

[tex]m = \frac{y_2 - y_1}{x_2 -x_1}[/tex]

So, we have:

[tex]m = \frac{540 - 600}{1-0}[/tex]

[tex]m = \frac{- 60}{1}[/tex]

[tex]m = - 60[/tex]

So, the slope is -60, and it represents the rate at which the amount of water changes hourly.

The function of the table is represented as:

[tex]y = -60x + 600[/tex]

So:

(a) is false, because the slope is -60

(b) is true, because y = 180 when x = 7

(c) is false, because the initial value is 600

(d) is true

Read more about linear functions at:

https://brainly.com/question/15602982

What decimal number does point A on the number line below represent?

A vertical number line is shown from negative 2.00 to 0 to positive 2.00.There are tick marks to show increments of 1 over 4. Only the whole numbers are labeled. Point A is plotted at the third tick mark below 0.

−0.75
0.75
−1.25
1.25

Answers

Answer:

I think its -0.75.

Step-by-step explanation:

Btw this is just the practice test if ur doing flex flvs so it does not matter much Lol

Answer:

WROOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOONG :3

Step-by-step explanation:

un cuadro tiene 12 cm en sus lados ¿cuanto mide su area y su perimetro

Answers

Answer:

area es 48 cm

el perimetro es 144cm

Step-by-step explanation:

I WILL GIVE BRAINLIEST 50 POINTS

What is the average rate of change for the mold over the 6 days?

Answers

Answer:

The average rate of change is 63/6

Step-by-step explanation:

You take the the change from 0 - 6 and 1 - 64 as the changes

the equation is:  delta y

                           delta x

so the average rate is 63/6

The base of a triangle and a parallelogram are the same length. Their helghts are also the same. If the area of the
parallelogram Is 48 m2, what is the area of the triangle?

Answers

Answer:

24

Step-by-step explanation:

The area of a parallelogram is A=

The area of triangle is A=1/2 so this means if the area of the parallelogram is 48 m then the area of a triangle is 24 m

Garret paid 20$ for five movie tickets find the cost per ticket



Megan paid 22$ for 7 books determine the cost per book

Answers

Answer:

Step-by-step explanation:

Cost of a ticket = Total cost ÷ number of tickets

                         = 20 ÷ 5

                         = $ 4

2) Cost of 7 books  = $ 22

Cost of a book = 22 ÷ 7

                         = $ 3.11

Answer:

4 dollars each for 1st question and 3.1 dollars for second question

Which fraction is equivalent to 0.8?

One-eighth
Eight-tenths
Four-fifths
Eight-ninths

Answers

Answer:

Four-fifths (4/5)

hope it helps!

Answer:

Four-fifths

Step-by-step explanation:

To convert this decimal into a fraction remove the decimal and divide by 10, so the new fraction looks like 8/10. You do this because the eight is in the tenths place, so it literally translates to eight-tenths. However, fractions need to be in the simplest form so you divide both the numerator and denominator by 2 to get the final answer 4/5 or four-fifths.

The Orlando Solar Bears had a successful season on the ice winning 80% of their games. They won a record of 32 games. How many games are in a season?

Answers

Answer:

Step-by-step explanation:

You'd do 80% times 32. You have to move the 80 to the left 2 times. then multiply.

help with math please?

answer options:


115°



83°



112°



81°

Answers

The answer is 83 degrees

What is the solution(s) to the equation? Use algebra only, no graphing.
(5x + 15)(x - 7) = 0

Answers

Answer:

x = -3, x = 7

Step-by-step explanation:

( 5x + 15 ) ( x - 7 ) = 0

5x + 15 = 0

5x = -15

x = -3

x - 7 = 0

x = 7

Answer:

x=−3 or x=7

Step-by-step explanation:

(5x+15)(x-7)=0

5x2−20x−105=0

5(x+3)(x−7)=0

x+3=0 or x−7=0

x=−3 or x=7

Hi! Solve for x and y.

Answers

Answer: 14x -8= -112

Step-by-step explanation:

You paid $80 for a coat. It had been discounted 25%. What was the original price of the coat?

Answers

Answer:

85.6

Step-by-step explanation:

80/75=1.07

1.07*80=85.6

The shaded region of the design shown is to be painted red. What is the area, in square units, of the shaded region? (Use = 3.14)

A 43.0

B 62.8

C 121.5

D 137.2​

Answers

Answer:

A.43.0

Step-by-step explanation:

area of rectangle= l*w=10 units *20 units= 200 units^2

area of the 2 circles:

diameter= 20/2=10 units

r=d/2= 10/2=5 units

area of a circle= 3.14*r^2

=3.14*5*5

=78.5> the 2 circles are identical then they have the same area

area of the shaded region= area of the rectangle- 2*area of one circle

= 200- (2*78.5)

=200-157

=43.0

therefore the area of the shaded region is 43.0 units^2

A d + b = 180

B. C + b = d + c

C. Reflect across line CE. Then, angle CBD is the image of angle EBA.

D. Rotate 180 degrees using center B. Then, angle CBD is the image of angle EBA.


E. Reflect across the angle bisector of angle ABC. Then, angle CBD is the image of angle ABE.

Answers

I know B is true, but i’m unsure for the other choices.

If the bowl weighs 520 grams when it holds 15 tablespoons of sugar and 680 grams when it holds 26 tablespoons of sugar, what is the rate of change of the weight of the bowl with regards to the tablespoons of sugar?

Answers

Answer:

1.5 grams per tablespoon

Actual distance between two places is 130 miles. The scale of the map is
1 in:100 miles. What is the distance between these two places in the map?

Answers

Answer:

1.3 inches

Step-by-step explanation:

1. Determine what you already know in order to set up the equation:

1 inch = 100 miles

x inches = 130 miles

Solving for x

2. Set up the equation so both numerators are the same unit (In this case, both numerators are the mile values and both denominators are the inch values.)

[tex]\frac{100}{1}[/tex] = [tex]\frac{130}{x}[/tex]

3. Cross multiply (Multiply the first fraction's numerator by the second fraction's denominator, and vice versa. It doesn't matter which number is on which side of the = sign.)

100x = 130

4. Divide each side by 100 to isolate the variable.

x = 1.3

HELP PLZ! (Will give Brainliest)

You aren't so sure that Kristoff is correct, so you want to see another representation of the data. You draw box-and-whisker plots for each of their six jumps. Based on this representation, who do you recommend gets sent to the track meet and WHY?

Answers

I would recommend that Anna gets sent to the track meet because although her average is lower than olafs, she has much more experience because as you can see in the box and whisker plot, she has done a lot more running

9,492÷20=
WITH REMAINDER

Answers

Answer:

9492 divided by 20 equals

474 with a remainder of 12

Step-by-step explanation:

or 2373/5 or 474.6

SHOW ALL YOUR WORK EVERY DIVISION ADDITION MULIPLICATON AND SUBTTRACTION PROBLEM YOU DO TO SIMPLIFY THIS EXPRESSION MUS BE SHOWN thanks :)
(6g-9)+1/3(15-9g)

Answers

Step-by-step explanation:

i hope this helps you somehow

THE SUM OF TWO NUMBERS IS 96. THE
DIFFERENCE OF TWICE THE LESSER
NUMBER AND HALF THE GREATER NUMBER IS
22. WHAT ARE THE TWO NUMBERS?

Answers

Answer:

59 + 37

Step-by-step explanation:

96/2 = 48

48 - 11 = 27

48+11 = 59

5. Identify the slope and the y-intercept in the follow
equation: *
(5 puntos)
y = 5x + 3
Escriba su respuesta

Answers

Answer:

Slope (m) = 5

Y-intercept (b) = 3

Step-by-step explanation:

The equation of a line is y = mx + b, where (m) is the slope and(b) is the y-int.

Knowing this, we see that the slope is 5 and the y-int is 3.

hope this helps!

find the equation of straight line passing through the points (a,0) and (0,b). If the point (1,1) lies on the equation, prove that
1/a + 1/b =1​

Answers

Answer:

do the following

Step-by-step explanation:

the question says that the line is passing thur the point 1,1 ... so when x = 1 so does y ... also  when  x= a.. then y=0 and when y=b then x =0  .. and this is a straight line... also  1/a + 1/b = 1

if you were to draw on a graph... this .. you would see that when b=2  then x=0 and also when a=2.. then y = 0  ....

and 1/2 + 1/2 =1

so that's the line.... draw in just roughly.... you'll see... then what is the equation of that line.. usually we would use  the slope intercept formula for the equations.. there are more than one way to show the line.. is my point.. but.. if we use  y = mx + b  where m = -1   and b = 2 then...

y= - x+2

That answer got long.. sorry :/

Answer:

step by step

Step-by-step explanation:

Line passing (a,0) (0,b)

slope = (y2 - y1) / (x2 - x1) = - b/a

pass (0,b), y interception: b

Line: y = -b/a * x + b  

pass(1,1) y=1, x=1

1 = -b/a + b  

1/b = (-b/a) /b + b/b

1/b = -1/a + 1

1/a + 1/b = 1  

With the information given, can you prove
that this quadrilateral is a parallelogram?
D
В
Yes
No

Answers

Answer: No

Currently we don't have enough information to prove this quadrilateral is a parallelogram. One piece of information that would be useful would be if the other diagonal is bisected. If that's the case, then we have a parallelogram (we would first prove the triangles congruent and then use the corresponding congruent angles to set up the parallel lines). Unfortunately, we only know about one diagonal being bisected, but not both, so we don't have enough info.

What is the equation of the line that passes through the point (4, 3) and has a slope
of 1?

Answers

Answer:

y=x-1

Step-by-step explanation:

Answer:

y=x1

Step-by-step explanation:

A bricklayer can build a wall of a certain size in 5 hours. Another bricklayer can do the same job in 4 hours. If the bricklayers work together, how long would it take to do the job?
a. 9h
b. 2(2/9)h
c. 20h
d. 4(1/2)h

Answers

Answer:

b

Step-by-step explanation:

It will take [tex]\frac{20}{9}[/tex] hours as per linear equation to complete the wall.

What is a linear equation?

A linear equation is an equation where the variable of the equation has the highest power of degree one.

Given, the 1st bricklayer build a complete wall of certain size in 5 hours.

Therefore, that bricklayer build [tex]\frac{1}{5}[/tex]th of the complete wall in 1 hour.

Similarly, the 2nd bricklayer build a complete wall of certain size in 4 hours.

Therefore, that bricklayer build [tex]\frac{1}{4}[/tex]th of the complete wall in 1 hour.

If they work together, in 1 hour they build a total of ([tex]\frac{1}{5}[/tex]+[tex]\frac{1}{4}[/tex])th = [tex]\frac{9}{20}[/tex] of the complete wall.

Hence, they will complete the wall in (1÷[tex]\frac{9}{20}[/tex]) hours = [tex]\frac{20}{9}[/tex] hours.

Learn more about a linear equation here: https://brainly.com/question/13738061

#SPJ2

Which of these is parallel to y= 4x-2

y=5+4x
y=4-3x
y=4x+1
y=5-4x
y=4x-4

Answers

Answer:

y=4x+5(the first one)

y=4x+1

y=4x-4

Step-by-step explanation:

If the slope is the same, it is parallel

The equation for a linear equation is y=mx+b

mx is the slope

your original equation is y=4x-2, so the slope is 4.

To find which ones are parallel, you find the ones with the slope 4x(make sure it isn't -4x).

Jasmine can buy 2.25 pounds of beef for $7.98.

What is the unit price per pound of meat?
I haven't done unit rate in a while and I can't find it in my notes. So could you explain how to find unit rate too?

Answers

Answer:3.54

Step-by-step explanation:You would divide the price by the amount.

−2, −1, 4 , find all numbers listed that are solution of the equation. (Careful, there might be more than one that work!) If you find several solutions, separate them with a comma. If none of the given numbers work, just enter DNE for 'does not exist'.


k3−k2+k−4=−2k2+k−4

Answers

Answer:

k3-k2+k-4=−2k2+k−4 that is the answer

If 4x+5=13x+4-x-9 then x= ?

Answers

4x + 5 = 12x -5
10 = 8x
10/8 = x
5/4 = x

Answer:

x = 5/4

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Equality Properties

Algebra I

Combining Like Terms

Step-by-step explanation:

Step 1: Define Equation

4x + 5 = 13x + 4 - x - 9

Step 2: Solve for x

Combine like terms:                    4x + 5 = 12x - 5Subtract 4x on both sides:          5 = 8x - 5Isolate x term:                              10 = 8xIsolate x:                                       5/4 = xRewrite:                                        x = 5/4

Step 3: Check

Plug in x into the original equation to verify it's a solution.

Substitute in x:                    4(5/4) + 5 = 13(5/4) + 4 - 5/4 - 9Multiply:                               5 + 5 = 65/4 + 4 - 5/4 - 9Add:                                     10 = 81/4 - 5/4 - 9Subtract:                              10 = 19 - 9Subtract:                              10 = 10

Here we see that 10 does indeed equal 10.

∴ x = 5/4 is the solution to the equation.

Other Questions
Discuss an ecosystem in which there is a producer, a consumer, a secondary consumer, and a decomposer. Name the ecosystem and specific organisms for a producer, consumer, secondary consumer, and decomposer how many times does 46 go into 296? What is the rule when reflecting across the line y = x List the ten principles of a green economy On January 1, 2021, Strato Corporation borrowed $2 million from a local bank to construct a new building over the next three years. The loan will be paid back in three equal installments of $776,067 on December 31 of each year. The payments include interest at a rate of 8%. Prepare an amortization schedule over the three-year life of the installment note. (Round your final answers to the nearest dollar amount.) Cleo found an arthropod in a grassy field. The arthropod has six pairs of legs, two pairs of antennae, two body sections, and an open circulatory systemQ: Which conclusion is best supported by the information?A: The arthropod is an arachnid because it has two body sections and an open circulatory system. B: The arthropod is an arachnid because it has six pairs of legs and two pairs of antennae.C:The arthropod is a crustacean because it has two body sections and an open circulatory system. D: The arthropod is a crustacean because it has six pairs of legs and two pairs of antennae. what is a common use for electromagnets How did reinvention time make golden age happier How can this sentence be rewritten to use an adverb of frequency?Teresa prepara la comida los lunes, los martes, los mircoles, los jueves, los viernes, los sbados, y los domingos. 1. Teresa prepara la comida rara vez.2. Teresa prepara la comida todos los das.3. Teresa prepara la comida poco.4. Teresa prepara la comida de vez en cuando. Please help me for 15 points ASAP Daniel decides to use the method of proportions and similartriangles to find the height of a tower. He measures the length of thetower's shadow and finds it is 72 feet long. Then he holds a 12-inchruler perpendicular to the ground and finds that it casts an 24-inchshadow. How tall is the tower? a. 3 ft c. 36 ft b. 4 ft d. 144 ft how many times can 23 go into 26 How did imperialism contribute to the start of World War I While taking courses at a community college, Patrice also spends time each week assisting at her town's community center. Patrice aides the community center leaders and learns about how the center works. Although she is not paid for this time, she hopes to begin a full-time job at the community center after finishing her courses. Patrice's time at the community center is called O secondary education. O doctoral research. O a certification O an internship I need help know!!!!! Which are compounds ? 1. Convert 0.28 to a fraction. 2. Convert 3/5 to a decimal. 3. Convert 185% to a fraction.NEED THIS DONE ASAP DO TOMORROW name all the heroes in the seven from the boys What is the similarity between teeth and eggshells? Sewtfi951 Corporation makes an extra large part to use in one its fabulous products. A total of 14,500 units of this extra large part are produced and used every year. The company's costs of producing the extra large part at this level of activity are below: Per Unit Direct materials $3.20Direct labor $7.80Variable manufacturing overhead $8.30Supervisor's salary $3.70Depreciation of special equipment $2.10Allocated general overhead $7.30An outside supplier has offered to make the extra large part and sell it to Sewt1951 for $32.30 each If this offer is accepted the supervisor's salary and all of the variable costs, including the direct labor, can be avoided The special equipment used to make the extra large part has no salvage value or other use The allocated general overhead representa fixed costs of the entire Sewt1951 company. none of which would be avoided at the part were purchased instead of produced internally. In addition, the space used to make the extra large part could be used to make more of one of the company's other fabulous products, generating an additional segment margin of $34,500 per year for that product What would be the annual financial advantage (disadvantage) for Sewt1951 Corp as a result of buying the extra large part from the outside supplier?