In his truck Robert can drive 80 miles on 2 gallons of gas. Find the distance that Robert's truck can travel on 17 gallons of gas. Round to the nearest hundredth.

Question

In his truck Robert can drive 80 miles on 2 gallons of gas. Find the distance that Robert's truck can travel on 17 gallons of gas. Round to the nearest hundredth. ​

Quizplus · Accepted Answer

If Robert can drive 80 miles on 2 gallons of gas, then he can drive 40 miles on 1 gallon of gas (since 80 miles / 2 gallons = 40 miles per gallon). Therefore, on 17 gallons of gas, he can drive:
40 miles per gallon x 17 gallons = 680 miles. 
Rounding to the nearest hundredth yields 680.00 miles, which is answer choice C.

In His Truck Robert Can Drive 80 Miles on 2