Question

The millers drove 150 miles in 3 hours. At a rate, how long does it take to drive 400 miles?

Answer 1

8 hours

Explanation:

150=3x

x=50

400/50=8

Answer 2

8 hours

Explanation:

We can use ratios to solve

150miles 400 miles

---------------- = --------------

3 hours x hours

Using cross products

150x = 400*3

150x = 1200

150x/150 = 1200/150

x =8

8 hours