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Optimal Speed of a Truck A truck gets. 500/x miles per gallon (mpg) when driven at a constant speed of x mph, where 40 ≤ x ≤ 80. If the price of fuel is $2.80/gal and the driver is paid $13/hr, at what speed is it most economical for the trucker to drive? (Round your answer to two decimal places.)

Optimal Speed of a Truck A truck gets. 500/x miles per gallon (mpg) when driven at a constant speed of x mph, where 40 ≤ x ≤ 80. If the price of fuel is $2.80/gal and the driver is paid $13/hr, at what speed is it most economical for the trucker to drive? (Round your answer to two decimal places.)

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Optimal Speed of a Truck

A truck gets. 500/x miles per gallon (mpg) when driven at a constant speed of x mph, where
40 ≤ x ≤ 80.
If the price of fuel is $2.80/gal and the driver is paid $13/hr, at what speed is it most economical for the trucker to drive? (Round your answer to two decimal places.)
 
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