# “a” and “b” are 128 mi apart. car leaving a averages 10mi/h more than the other car leaving “b”. they meet aftr 1hr36mins.what is ave speed?

Update:

the car leaving a and b both left at the same time. what is the average speeds of the cars?

### 1 Answer

Relevance

- 4 weeks ago
Let's call them Car A and Car B. In 1 hr 36 minutes, they close a distance of 128 miles.

distance = velocity * time

128 = (A + B) * (1 + 36/60)

A = 10 + B

128 = (10 + B + B) * (1 + 0.6)

128 = (10 + 2B) * 1.6

80 = 10 + 2B

70 = 2B

35 = B

B travels at 35 mph

A travels at 45 mph

Still have questions? Get answers by asking now.