A driver drove for 3 hours at a certain speed. if he drove 12 more miles at the same speed, the distance would be 132 miles. at what speed did he drive?

Question

asked Jan 19, 2019 173k views

2 Answers

Bengerman · Answer 1 · 2019-01-26T11:29:00+0000

Answer:

40mph

Step-by-step explanation:

1st leg DATA:

time = 3 hrs ; speed = r mph ; distance = 3r miles

------------

2nd leg DATA:

speed = r mph ; distance = 12 miles

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3r + 12 = 132

3r = 120

rate = 40 mph