Acar traveled at an average speed of 80 miles per hour for 3 hours and consumes fuel at a rate of 34 miles per gallon

The number of gallons of fuel that car use for the trip is 7.06 gallons.

Given that,

The speed of the car is 80 miles per hour.The time taken is 3 hoursAnd, the fuel rate is 34 miles per gallon.

Now based on the above information, the number of gallons should be

= 7.6 gallons

Therefore we can conclude that the number of gallons of fuel that car use for the trip is 7.06 gallons.

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As an example I will finish this problem statement for you:

"A car traveled at an average speed of 80 miles per hour for 3 hours and consumes fuel at a rate of 34 miles per gallon.  How many gallons of fuel will the car use on this trip?

Distance traveled is (80 mph)(3 hrs) = 240 miles.

How many gallons of gas did the car consume?

240 miles        1 gallon
* =  7.06 gallons (approx)
        1            34 miles

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