SOLUTION: The average 140-lb adult burns about 380 calories bicycling 10 miles at a moderate rate. how far should the average 140-lb adult ride in order to burn 100 calories?

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Question 883033: The average 140-lb adult burns about 380 calories bicycling 10 miles at a moderate rate. how far should the average 140-lb adult ride in order to burn 100 calories?
Answer by LinnW(1048)   (Show Source): You can put this solution on YOUR website!
380 calories per 10 miles
=
38 calories per 1 mile
so
where x is the number of miles required
do cross products
38x = 100
divide each side by 38
x = 100/38
x = 50/19
x is approximately 2.63 miles

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