Question

Choose the expression that would equal the number of hours in the following question. If a car averages 50 1/3 miles per hour, how many hours will it take to go 47 1/2 miles?

583/6
285/302
302/285
45,602/6

Answer 1

50 (1/3) mph
47 (1/2) = 47.5 mph

47.5 / 50 (1/3) = 0.943708609271523 hours

times 60 =
56.6225165563 minutes =

56 minutes 37.3509933775 seconds

Answer 2

Answer:
`(285)/(302)`

Explanation:

The first step is to turn the mixed numbers into whole numbers:

`50(1)/(3)=((50*3)+1)/(3)=(151)/(3)\\   \\47(1)/(2)=((47*2)+1)/(2) = (95)/(2)`

Then, to solve the problem you can use a simple rule of three:

151/3 miles ---------- 1 h

95/2 miles ---------- x

`x=((95)/(2)*1 )/((151)/(3) ) =(3*95)/(2*151) =(285)/(302)`

So, the car will take
`(285)/(302)` hours to go
`47(1)/(2)` miles.