sally5
Answered

PLEASE HELP


Lisbeth runs on the track team. After practicing for 4 weeks, she lowers her time in the 800 meter run by 20 seconds.


Which expression can you use to calculate the average change in seconds per week?


A.-800÷4


B.-20÷4


C.20÷4


D.800÷4


Part 2


Evaluate the expression that represents the scenario.

_____________________

Verified Answer :

C20 / 4

20 represents how much time practicing in running has reduced her run time, and dividing by 4 weeks show the amount of seconds lowered per week (5 seconds).