Question

mary goes running each day. in 3 hours she runs a total of 7 miles. how many miles does she run in 1 hour

Answer 1

Simply set up a proportion: hours/miles=hours/miles

3/7=1/x.

Cross multiply to get 3x=7. Divide by 3 to get 7/3.

Therefore, Mary runs 7/3 miles in an hour.