Question

The population 6th grade next year is predicted to go up by 5% of this year's population. If this year's population is 400, what is the amount of kids it will GO UP BY NEXT year?

Answer 1

It will go up by 20 Kids.

Explanation:

First put the percentage of 100. In this case, 5/100. Then, multiply that by 400, and you will get your answer.

Answer 2

It will go up by 20 kids. The total number of kids would be 420, but there would be 20 new kids.

Explanation:

To find rate of change, multiply the percentage with the number. When looking for the total number, add the multiplied number to the original number.