SOLUTION: Greg drove at a constant speed in a rainstorm for 252 miles. He took a&#8203; break, and the rain stopped He then drove 240 miles at a speed that was 4 miles per hour faster than

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Question 1089300: Greg drove at a constant speed in a rainstorm for 252 miles. He took a break, and the rain stopped He then drove 240 miles at a speed that was 4 miles per hour faster than his previous speed. If he drove for 13 hours, find the car's speed for each part of the trip.
Found 2 solutions by josgarithmetic, ikleyn:
Answer by josgarithmetic(39617) (Show Source):
You can put this solution on YOUR website!

SPEED TIME DISTANCE RAIN r 252/r 252 NO RAIN r+4 240/(r+4) 240 Total 13

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discriminant,

Answer by ikleyn(52781) (Show Source):
You can put this solution on YOUR website!
.

= 13. Solve for x, which is the lowest speed, in miles per hour. Answer. x = 36 mph.

SOLUTION: Greg drove at a constant speed in a rainstorm for 252 miles. He took a&#8203; break, and the rain stopped He then drove 240 miles at a speed that was 4 miles per hour faster than

SOLUTION: Greg drove at a constant speed in a rainstorm for 252 miles. He took a break, and the rain stopped He then drove 240 miles at a speed that was 4 miles per hour faster than