Question

please help ill give medals and fans.
The fuel tank of a compact truck holds 17 gallons. On a full tank, the truck can travel about 408 miles in the city or 476 miles on the highway. The fuel tank of a compact car holds 14 gallons. On a full tank, the car can travel about 364 miles in the city or 490 miles on the highway. How many hours of highway driving are required for each to empty its tank? Assume an average speed of 60 miles per hour.

Answer 1

A. The truck will have an empty tank after 7.93 h. The car will have an empty tank after 6.07 h.

B. The truck will have an empty tank after 6.8 h. The car will have an empty tank after 8.17 h.

C. The truck will have an empty tank after 6.8 h. The car will have an empty tank after 6.07 h.

D. The truck will have an empty tank after 7.93 h. The car will have an empty tank after 8.17 h.

Answer 2

Ok, so we don't have to worry about the amount of gallons each vehicle can hold or how many miles they travel in the city.
The only information we need to know is that the truck can go 476 miles on the highway and the car can go 490 miles on the highway. If we know that they are going 60 miles an hour, how could we figure out how many hours they can travel?

Answer 3

cross multiplication & division?
@NinjaDevo

Answer 4

Yeah, so I would just use division.
For the truck: 476 miles/60 miles an hour = 7.9333 hours
Now you try figuring it out for the car.

Answer 5

8.166

Answer 6

@NinjaDevo

Answer 7

Yup, so we now have that the truck can travel for 7.9333 hours (or 7.93 hours rounded down) and that the car can go 8.1666 hours. (or 8.17 hours rounded up)
This was the forth option: " D. The truck will have an empty tank after 7.93 h. The car will have an empty tank after 8.17 h."
So our answer is D. :)