In 5 min, Peter completed 2 math problems. Yvonne says he did 3/5 of a problem each minute. Is she correct? Explain. Sorry I really didn't get my math homework.

Let's add to see if Yvonne is right.

3/5 in 1 minute

3/5 + 3/5 + 3/5 + 3/5 + 3/5 = 15/5 = 3 math problems in five minutes.

Yvonne is wrong.

Let's try adding 2/5

2/5 + 2/5 + 2/5 + 2/5 + 2/5 = 10/5 = 2 math problems in 5 minutes

To determine whether Yvonne's statement is correct, we need to verify if Peter indeed completed 3/5 of a math problem each minute.

First, let's interpret the given information: Peter completed 2 math problems in 5 minutes. This means he solved each problem in 5/2 = 2.5 minutes.

Now, we can calculate the rate at which Peter solved the math problems by dividing the number of problems by the time taken.

Rate = Number of problems / Time

Rate = 2 problems / 5 minutes

Rate = 2/5 = 0.4 problems per minute

Thus, Peter solved 0.4 problems per minute, which is equivalent to 2/5 of a problem per minute.

Comparing this to Yvonne's statement that Peter completed 3/5 of a problem per minute, we can see that Yvonne is incorrect. Peter actually solved 2/5 of a math problem per minute, not 3/5.

You can solve similar problems by analyzing the given information, calculating the relevant quantities, and comparing them with the statement or question provided. This approach helps to verify the accuracy of the given information and derive the correct answer.