Janice is training for a 5K. She predicted she would spend 90 minutes running this week. She actually ran for a total of 120 minutes. What is her percent error?

There is a 25% error.

Step-by-step explanation:

(90−120)|120|×100=(90−120)|120|×100

=−30120×100=−30120×100

=−0.25×100=−0.25×100

=−25%=−25%

=25%error

P.S I had this question on my quiz, I put this down, and I got a A+. I hope this helped :)

33%

Step-by-step explanation:

She is 33% off. She was planning to run 90 minutes, but ran 30 minutes more, which is 33.3333333333% percent of 90.

4

step-by-step explanation:

the number of the people going.

step-by-step explanation:

the cost to buy one movie ticket is $7. if the total cost for the movie is a function of how many people go, then the input is : the number of the people going.