Mathdory

Sorry, I didn't read the question clearly. Thank you for the heads up!

Larry had 151 erasers and Kenneth had 109 erasers. When each one gave away the same number of erasers, Larry then had 2 times as many erasers as Kendra. How many erasers did each friend give away?

Let's start with the variable "x". We don't know how many erasers they each gave away but we do know that they gave away the same amount of erasers and that after giving away these erasers Larry had 2x the amount.

That gives us an equation like this 151-x=2(109-x)

Then we simplify it to 151-x=218-2x

                                          x = 67

Hope this helps!

We first divide 16/4 to find out how many ballons is each 1/7.

Then we mutiply the 16/4 which is 4x7 = 28

He has 28 ballons total.

Joe, Ken, and Liam had some muffins. Joe had 2 fewer muffins than Ken. Liam had 5 fewer muffins than Joe. How many more muffins did Ken have than Liam?

We know that Joe has 2 fewer muffins than Ken and Liam has 5 fewer muffins than Joe which we add 5+2 to get the answer of 7.

7 is the answer.

The mode of this set of data is 11

https://web2.0calc.com/questions/the-zoo-transferred-131-birds-to-the-safari-park

This link has the answer already.

Will and Sam shared a $165 cash prize in the ratio 7:8. How much money did Will get?

Add up the the 7+8 which equals 15.

Then we can divide the 165 by 15 which equals 11. 

11x7 and 11x8 is the ratio.

Will got 77 dollars.

D is the answer because it has the biggest fraction and if you plug it in with "n" and subtract it with 1/3, it will be equal to the fraction 2/15. The other answers are too small of a fraction which when the subtract by 1/3 you will get a negative fraction.

Hope this helps! 

 Mr. Watkins arranged the quiz scores of his afternoon math class from least to greatest:

      5, 5, 6, 6, 6, 7, 7, 7, 7, 7, 8, 8, 8, 8, 8, 8, 9, 9, 9, 10, 10

How many students are in Mr. Watkin’s afternoon math class?


How do the quiz scores vary?


 

What is the mode of the scores?


 

What is the median of the scores?

There are 21 students.

The mode of the scores is 8                             (The mode is the value that appears most often)

The median of the score is 8                            (The median is the middle of the sorted numbers)

Hope this helps! 

Terrell usually lifts two 20-pound weights 12 times. If he uses two 15-pound weights instead, how many times must Terrell lift them in order to lift the same total weight?

We will need to find out how many pounds he lifts.

Since he has 2 20 pounds this means that each time he lifts, he lifts 40 pounds.

He lifts 12 times so 40x12=480 pounds.

We divide by thirty because he uses 2 15 pounds.

This means that 480/30 = 16

He lifts 16 times

Hope this helped!