Yanni's scooter uses 7 gallons of gasoline to travel 85 kilometers. His dad does some mechanical work to the scooter such that it now uses 5 gallons of gasoline to travel 70 kilometers. If the price of gasoline is $2.85 per gallon, how much less, to the nearest cent per kilometer, will it cost to run the scooter after his dad does some mechanical work?

Question

Chad Hayden

27 June, 16:19

+3

Answers (1)

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Trystan May · Answer 1

5*2.85/70 = 0.2035714285

7*2.85/85 = 0.2347058823

0.2035714285 - 0.2347058823 = - 0.03113445372

It costs 3 cent per kilometer less after the work.