Question

Rosa has a goal of running a total of 100 miles this month. Each day that she ran, she 37 ran 5 miles. Which expression could Rosa use to determine how many miles she has left to run after running for d days?
A 100-5d
B 5d+100
C 100/5d
D 5d

Answer 1

Hi there!

In order to figure out how many miles Rosa has left to run, you should subtract the number of days she has ran (d) times the number of miles per day (5) from the total miles that she plans to run (100). The equation for this would be 100 - 5d, or answer choice A. 

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