note2sethw note2sethw

02-01-2019
Mathematics

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

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offguard offguard

02-01-2019

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.

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