Question

The number of kids in a robotics club grew from 23 to 31. What was the percent increase in the number of kids in the club? Round your answer to the nearest whole percent.

Answer 1

Answer:
`35\%`

Explanation:

For this exercise you need to use the following formula:

`\%increase=(New\ value-Old\ value)/(Old\ value)*100`

According to the exercise, the number of kids in a robotics club grew from 23 to 31; then you can identify that:

`New\ value=31\\\\Old\ value=23`

Knowing these values, you can substitute them into the equation and then evaluate, in order to find the percent increase in the number of kids in the club. Then:

`\%increase=(31-23)/(23)*100\\\\\%increase=34.78\%`

Rounding it to the nearest whole percent:

`\%increase=35\%`