math
posted by derek .
Running at a constant speed, Andrea covers 15 miles in 2.5 hrs. At this speed, how many minutes will it take her to run 2 miles?
I know that I need to use conversion but i don't know how to convert it.

2.5 hours = 150 minutes
15 miles in 150 minutes
{Divide by 15}
1 mile in 10 minutes
2 miles in ?? minutes
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