Question

Shea's mother wanted to get him a doctor's bag for a graduation present. She thought it would cost $125, but the actual cost was $95.99 . What is the

percent error between her estimate and the actual cost?

Answer 1

so percent error=
`(|actual value-predicted value|)/(predicted value)` times 100
note: |x| means absolute value of x means makes it positive

predicted value=125
actual value=95.99
subaitute

`(|95.99-125|)/(125)` times 100=
`(|-29.01|)/(125)` times 100=
`(29.01)/(125)` times 100=
`(2901|)/(125)`=23.208 or about 23%

the answer is 23%