Question

Derek is training for a half-marathon. His training plan sets his goal for this week at 18 miles with three short runs and one longer run.

His three short runs total 9.35 miles.

How long will his long run need to be to meet his goal?

Answer 1

8.65

Explanation:

Here are the steps:

18-9.35=8.65

She needs to run 18 miles so subtract what she has already ran and you get the answer

I took the test, hope this helps

Answer 2

8.65 miles

Explanation:

The total of his short runs are 9.35 so you need to find out how many miles he has left till he reaches 18 miles.

The equation you can use is 9.35 + x = 18 x will equal the number of miles for the long run.

9.35 + x = 18

to isolate x you will subtract 9.35 from both sides.

you will get:

x = 8.65

8.65 miles