Question

Two cars leave towns 750 kilometers apart at the same time and travel toward each other. One car's rate is 20 kilometers

per hour less than the other's. If they meet in 5 hours, what is the rate of the slower car?

Answer 1

Explanation:

add up their speed.

combined speed = x+ 1 x + 10

( 2 x + 10 )

Time = 5 hours

Distance = 750 miles

Distance = speed * time

( 2 x 10 )* 5 = 750

10 x + 50 = 750

10 x = 750 + -50

10 x = 700

/ 10

x= 70 mph Car A

Car B 70 + 10 = 80 mph