Six children collect 45 pencils. 20% of the pencils need sharpening. How many pencils need
sharpening?

Answers

Answer 1

Answer:

9

Step-by-step explanation:

45*2/10=45*1/5=9

Answer 2

Answer:

9

Step-by-step explanation:


Related Questions

b)
Here is another number machine.
Input
Output
х
4x + 5

Answers

Answer:

collect like terms x=5-4=1

What does a residual value of â€""0. 8 mean in reference to the line of best fit?.

Answers

Residuals are used to determine how the line of best fit relates to the data points

A residual value of -0.8 means, the point is 0.8 units above the line of best fit

The residual value is given as:

[tex]\mathbf{Residual = -0.8}[/tex]

When the residual value is less than 0 (i.e. negative), then the point is above the line of best fit.

So, the interpretation of a residual value of -0.8 is that, the point is 0.8 units above the line of best fit

Read more about residuals at:

https://brainly.com/question/8433351

The angle measures of a triangle are in the ratio 3: 4: 3. Find the angle
measures of the triangle.

Answers

Answer:

72

Step-by-step explanation:

3X+4X+3X=180

10X=180

X=180/10

X=18

3X=54 BOTH

4X=72

Nathan earned $105.70 at his job when he worked for 7 hours. What was his hourly wage, in dollars per hour?

Answers

105.70 divided by 7 will give you 15.1 which will be his hourly wage.
Answer: $15.1

Write the equation of the line in fully simplified slope-intercept form

Answers

Answer:

y=3x-1

Step-by-step explanation:

Use slope intercept form (y=mx+b) to plug in the values for m and b

the sum of 9 and a number

Answers

Answer:

E+ 9

Step-by-step explanation:

Let E represent a number.

The sum of nine and the number is then E+9 as "sum" denotes addition.

Therefore the representation would be E+9

Large boxes weigh 75 pounds, and small boxes weigh 40 pounds. a. Write an inequality that represents the numbers of large, x , and small, y, boxes a 200-pound delivery person can take on the elevator.

Answers

The inequality that represents the numbers of large, x and small, y boxes of a 200 pound delivery person is; 75x + 40y ≤ 200

Weight of large boxes = 75 pounds

Weight of small boxes = 40 pounds

Number of large boxes = x

Number of small boxes = y

Thus;

Total weight of large boxes = 75x

Total weight of small boxes = 40y

If the delivery man has 200 pound weight to deliver, then inequality is;

75x + 40y ≤ 200

Read more about Inequalities at; https://brainly.com/question/24966055

Use the following function rule to find f(1).

f(x) = 8^x+7

f(1) =

Answers

Given the function [tex]f(x)=8^x+7[/tex], the value of f(1) is f(1)  =  15

The given function is:

[tex]f(x)=8^x+7[/tex]

To find f(1), substitute x = 1 into f(x) and evaluate for the result

[tex]f(1)=8^1+7[/tex]

Simplify the resulting equation to get the final result

f(1)  =  8  +  7

f(1)   =  15

Therefore, given [tex]f(x)=8^x+7[/tex], the value of f(1) is f(1)  =  15

Learn more here: https://brainly.com/question/25747693

Please no "files": Simplify. Express your answer as the given base raised to a single exponent.
(9^6)^8

Answers

Answer:

9^48

Step-by-step explanation:

when parenthesis are involved, you multiply the powers

6*8=48

Help,
Is the following triangle acute, obtuse, or a right triangle

Answers

Answer:

Right-as long as it has one right angle it is a right triangle. It actually can't have more than one right angle.

Step-by-step explanation:

It’s a right triangle.

Can someone please help I will give you 30 points and brainliest if the answer is right also no links please

Answers

Answer:

B: BC ≅EC

Step-by-step explanation:

You know that the two angles starting in C are congruent (they're opposite by vertex C).

Given that the B angle and the E angle are congruent, in order for the two triangles to be congruent by A(ngle)S(ide)A(ngle) you want the side inbetween to be congruent. That is BC and EC. Option B

Sandy worked extremely hard at her job and earned a large bonus at the end of the year. She decided to give her children 2/5 of the money and her grandchildren 1/4 of her bonus. How much of her bonus did she keep for herself?

Answers

Answer:

7/20 of her bonus

Step-by-step explanation:

Solution:

She gives her children 2/5 of her bonus and grandchildren 1/4 of her bonus.

= 1 - 2/5 - 1/4

= 1 - 8/20 - 5/20

= 1 -13/20

= 7/20

I hope it helps.

The product of 7 and a number is greater than 42. If the number is a whole number less than 10 , what could the number be?

Answers

Answer:

8 or 9

Step-by-step explanation:

Your primary equation that they gave you is ?b and has to be greater than ?a  7 x ?a =42

So your answer to ?a is 7 because 7 x 7 =42   therefore your answer to ?b has to be 8 or above.  

the next part of your problem states that it is a whole number UNDER 10....  this limits your possible answer to either 8 or 9.

Round 2,861 to the nearest hundred

Answers

2,900

hope this helps

Hey there!

2,891

= 200,000 + 800 + 90 + 01

= two-hundred thousand, eight hundred ninety one

Thousand:

2,000

Hundred:

900

Tens:

90

Ones:

1

Based on that information we can answer your question

SIMPLIFY IT

ANSWER: 2,900

[2,000 + 900 + 0 + 0]

[two thousand + nine hundred]

Good luck on your assignment and enjoy your day!

~Amphitrite1040:)

I put the question in a doc cuz its a screenshot, please help

Answers

Answer:

38

Step-by-step explanation:

90-52

I hope this helps

Help please and thank you!

Answers

they would be confirmation

Answer:

... are ...

Step-by-step explanation:

Verify if the ratio of corresponding sides is same:

Long sides ratio: 38/19 = 2Middle sides ratio: 28/14 = 2Short sides ratio: 20/10 = 2

Since the ratios are same the triangles are similar

Question 5(Multiple Choice Worth 1 points)
(04.02 MC)

City A and City B had two different temperatures on a particular day. On that day, four times the temperature of City A was 8° C more than three times the temperature of City B. The temperature of City A minus twice the temperature of City B was −3° C. The following system of equations models this scenario:

4x = 8 + 3y
x − 2y = −3

What was the temperature of City A and City B on that day?

City A was 5° C, and City B was 4° C.
City A was 3° C, and City B was −1° C.
City A was 8° C, and City B was −3° C.
City A was 5° C, and City B was −5° C.

Answers

Answer:

City A was 5c, and city B was 4c so it’s the first one

Step-by-step explanation:

I just took the test and I got it right

Answer:

City A was 5c, and city B was 4c

Step-by-step explanation:

in 2012, the general social survey included a question that asked participants how many hours they worked a week. do males work more hours at a job than females? would this be an example of independent or dependent samples?

Answers

Using sampling concepts, it is found that this is an example of independent samples.

For dependent samples, there is a paired measurement for one set of items.For independent samples, separate measurements are made on two different sets, that is, the value on one sample reveal no information about the values on the other sample.

In this problem, there are two samples, the sample composed of male workers and the one composed of female workers, and separate measurements are taken, hence, it is an independent sample.

A similar problem is given at https://brainly.com/question/23106151

Find the unit rate to 30 1/2 and 1 1/4

Answers

Answer:

24.4

Step-by-step explanation:

yw

James threw a flying disk from a height of 4 feet above the ground. The disk travels a horizontal distance of 30 feet before falling to the ground. the height of the disk, in feet, at a distance of x feet from james, is modeled on the graph.

the domain represents the _____ the flying disk. The range of this function is [___, ___]. for this function, the range represents the flying disk’s _________

Answers

Answer:

the domain represents the horizontal flying of the disk. The range of this function is [0, 7]. For this function, the range represents the flying disk's possible heights

What does the value 12 represent in the function

Answers

Answer: The number twelve carries religious, mythological and magical symbolism, generally representing perfection, entirety, or cosmic order in traditions since antiquity.

Step-by-step explanation: If you're not talking about this type of 12 correct me.

A dairy made 97.01 ounces of yogurt. Then a local market bought 84 ounces of the yogurt. How much yogurt does the dairy have left?

Answers

13.01 ounces are left

The fuel capacity of a popular hybrid car is 11.9 gallons. The function for this situation is f(x) = -0.02x + 11.9, where x represents miles and f(x) represents the amount of fuel remaining. What is the rate of change for this scenario?​

Answers

Answer:

-0.02 gallons per mile

Step-by-step explanation:

You're in luck. The fuel consumption of the car is linear, and the slope - ie, the coefficent of the x term gives you the rate of change. In this case, it's -0.02 gallons per mile.

How do you solve , (x-2)2 ?

Answers

Answer:

Distributive property of multiplication

Step-by-step explanation:

2(x-2)

Multiply 2 times x, multiply 2 times 2, so you get:

2x-4

Answer:

Does that help?

Step-by-step explanation:

Highlight and name a pair of overlapping congruent triangles in each diagram. State whether the triangles are congruent by SSS, SAS, ASA, AAS, or HL.

Answers

Step-by-step explanation:

Diagram 1

ΔALP ≅ ΔMLN by ASAΔANO ≅ ΔMPO by AAS (angle O is common)

Diagram 2

ΔMQW ≅ ΔSRW by SSSΔMQR ≅ ΔSQR by SSS (QR is common side)

Diagram 3

ΔAGR ≅ ΔOGR by SSSΔARO ≅ ΔARF by HL

Diagram 4

ΔGOS ≅ ΔGTR by ASA (∠G is common)ΔSTU ≅ ROU by AAS (∠U is congruent as vertical and RO = ST)

i need help with all of this please

Answers

your picture isn’t loading and maybe try to set up a new one?

2 2/3 + 3/4 Estimate the Sum or difference

Answers

2 2/3=8/3
8/3x3/4=24/12
24/12=2

Mia is 7.04304 x 10 minutes old. Convert her age to more appropriate units using years, months, and
days. Assume a year has 365 days and a month has 30 days.
a
Mia is 13
years
months and
days old

Answers

Answer:13 years,1 month, and 29 days

Step-by-step explanation:

Find the exact length of EC.

Answers

Answer:

[tex]\sqrt{246}[/tex]

Step-by-step explanation:

The scale factor is [tex]\frac{4\sqrt{138} }{\sqrt{138}}[/tex] = 4

If AB = 6[tex]\sqrt{3}[/tex] then AC = 24[tex]\sqrt{3}[/tex]   4 times longer.

Using a² + b² = c²    substitute a = 4[tex]\sqrt{138}[/tex], b = 24[tex]\sqrt{3}[/tex], and c = DC = x

         [tex](4\sqrt{138})^2 + (24\sqrt{3} )^2= x^2[/tex]

            2208 + 1728 = x²

                3936 = x²

                 [tex]\sqrt{3936} = x[/tex]

                 4[tex]\sqrt{246[/tex]    this is the length of DC  

Now the length of EC is 4 times shorter, so EC = [tex]\sqrt{246}[/tex]

Ana is a teacher who plays a review game with her class. The game involves writing each student's name on
an identical slip of paper and selecting students at random. Here's the makeup of her class:
Grade
9th 10th 11th
Number of students
12. 9. 7.
Suppose that Ana picks a name, replaces it, and picks a name again.

What is the probability that NEITHER of the students selected are
9th graders?
Round your answer to two decimal places.

Answers

Answer:

P(Neither 9th grade)=16/28*16/28=16/28*16/28=(16/28)^2=256/784≈0.3265

Answer:

The probability that neither of the students selected are 9th  graders is about 0.33.

Step-by-step explanation:

Pls give brainliest

Probabilities are used to determine the chances of events

The probability that neither of the students is a 9th grader is 0.33

From the table, the number of students that are not 9th graders are:

[tex]N9 =9 + 7[/tex]

[tex]N9 =16[/tex]

The total number of students is:

[tex]Total =12 + 9 + 7[/tex]

[tex]Total =28[/tex]

The probability that neither of the students is a 9th grader is calculated as follows

[tex]P =P(N9) \times P(N9)[/tex]

So, we have:

[tex]P =\frac{16}{28} \times \frac{16}{28}[/tex]

Multiply

[tex]P =\frac{256}{784}[/tex]

Divide and approximate

[tex]P =0.33[/tex]

Hence, the probability that neither of the students is a 9th grader is 0.33

Read more about probabilities at:

https://brainly.com/question/7965468

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