Question

Al goes 8 mph; Ben goes 22 mph in the opposite direction. How many hours has Ben traveled when they are 180 miles apart?

15
6
12.86

Answer 1

add the speeds as they are helping increase the distance :
\[\text{time} =\dfrac{\text{distance}}{{\text{speed}}} = \dfrac{180}{8+22}\]

Answer 2

6

Answer 3

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