<PRE><B>Question 929944</B>
fuel economy improvement = 13.4 - 12.1 = 1.3 miles/gallon
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(1/1.3 gallons/mile) * (x miles) * (3.50 $/gallon) = 3200
(1/1.3) * x * 3.50 = 3200
x = 3200/((1/1.3) * 3.50)
x = 1188.56 miles
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