Question

Jocelyn calculates that see will take 105 minutes to run 7 miles. She runs the distance in 84 minutes. What is Jillian’s percent error? (Round final answer to the nearest tenth)​

Answer 1

`25%`%

Explanation:

Given: Jocelyn calculates that see will take 105 minutes to run 7 miles. She runs the distance in 84 minutes.

To find: Jillian’s percent error

Solution:

Actual time taken by Jocelyn to run 7 miles = 84 minutes

Approximate time taken by Jocelyn to run 7 miles = 105 minutes

Error =
`|105-84|=21` minutes

Percent error = error/(Actual time taken) × (100) =
`(21)/(84)(100)=25\%`