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After driving 70 miles,Mel used 3.8 gallons of gasoline. After he drove a total of 140 miles,he had used 6.3 gallons of gasoline.
a) Find the average rate of change of miles to gallons for miles [0,70]
b)Find the average rate of change of miles to gallons for miles [70,140]
c) )Find the average rate of change of miles to gallons for miles [0,140].

Respuesta :

cubicbook
a) 0.05429 gallon per mile or 18.4 miles per gallon
b) 0.03571 gallon per mile or 28 miles per gallon
c) 0.045 gallon per mile or 22.22 miles per gallon

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