MATHEMATICS MIDDLE SCHOOL

Some seventh-grade students at Michaelson Middle School were surveyed to find the amount of time they spent doing homework over the past two nights. What is the mean amount of time spent on homework per student?Amount of Time Spent Number of
on Homework(Hours) Students
2 4
3 5
4 6
5 3
6 3
7 0
8 1

Answers

Answer 1
Answer: The word mean is a synonym for average. To find the average, you add all of the data, then divide by the amount of data received.

So, we add 2+4+3+5+4+6+5+3+6+3+7+0+8+1. That totals to 57. Then, we divide by 14 because there are 14 answers. The end result is 4.07, because we round up.

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Jenna flips two pennies 105 times. How many times can she expect both to come up heads?

Answers

well u could divide 2 by 105

What is the answer to 15=k+8.2

Answers

you answer is K= 7.8

Hi there! :)

Answer:

K=6.8

*The answer must have a decimal point.*

Step-by-step explanation:

First, you switch sides.

k+8.2=15

Then, you subtract by 8.2 from both sides of an equation.

k+8.2-8.2=15-8.2

Subtract by the numbers from left to right.

15-8.2=6.8

Final answer is k=6.8

Hope this helps!

Thanks!

Have a nice day! :)

:D

-Charlie

Ali's dog weighs 8 times as much as her cat. Together, the two pets weigh 54 pounds. How much does Ali's dog weigh?

Answers

I did 54/8 because you are multiplying D×8 and the product of 54/8= 6.75 so yeah the answer is 6.75

The circumference of a circular garden is 100.48
feet. What is the radius of the garden? Use
3.14
for
π
and do not round your answer.

Answers

157.7536 IF I'm correct

Phyllis solved the compound inequality 16 ≤ 2(3x – 1) < 28. She began by first breaking the inequality into two separate inequalities, then she correctly solved each for x. Which graph represents her solution? A number line with a point at 3 with a bold line pointing to the right stopping at the open circle at 5. A number line with an open circle at 3 with a bold line pointing to the right stopping at the point 5. A number line with a point at 3 with a bold line pointing to the left and an open circle at 5 with a bold line pointing to the right. A number line with an open circle at 3 with a bold line pointing to the left and a point at 5 with a bold line pointing to the right.

Answers

Answer:

A number line with a point at 3 with a bold line pointing to the right stopping at the open circle at 5.

Step-by-step explanation:

Phyllis solved the compound inequality 16\le2(3x-1) < 28. She began by first breaking the inequality into two separate inequalities 16\le 2(3x-1) and 2(3x-1)<28, then she correctly solved each for x:

1) 16\le 2(3x-1):

Rewrite this inequality:

2(3x-1)\ge 16

Divide by 2:

3x-1\ge 8

Add 1:

3x-1+1\ge 8+1\n \n3x\ge 9

Divide by 3:

x\ge 3

2) 2(3x-1)<28:

Divide by 2:

3x-1<14

Add 1:

3x-1+1<14+1\n \n3x<15

Divide by 3:

x<5

The solution to the compound inequality are all values of x which are greater than 3 or equal to 3 and less than 5. So, you have to plot point at 3, draw a bold line to 5 and plot open circle at 5. Hence, option

A number line with a point at 3 with a bold line pointing to the right stopping at the open circle at 5

is true.

The answer to your question would be A.  

Hope you have a nice day!

a line segment has endpoints at (3,2) and (-2,3). which reflection will produce an image with endpoints at (-3,2) and (2,3)?​

Answers

the reflection under y-axis

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