SOLUTION: A driver took a day trip around the California coastline driving at two different speeds. He drove 70 miles at a slower speed and 300 miles at a speed 40 miles per hour faster. If

Question 604515: A driver took a day trip around the California coastline driving at two different speeds. He drove 70 miles at a slower speed and 300 miles at a speed 40 miles per hour faster. If the time spent during the faster speed was twice that spent at a slower speed, find the two speeds during the trip.
Answer by lwsshak3(11628) (Show Source): You can put this solution on YOUR website!
A driver took a day trip around the California coastline driving at two different speeds. He drove 70 miles at a slower speed and 300 miles at a speed 40 miles per hour faster. If the time spent during the faster speed was twice that spent at a slower speed, find the two speeds during the trip
**
let x=slower speed
x+40=faster speed
travel time=distance/speed
...
300/(x+40)=2*70/x
300x=140x+5600
160x=5600
x=35
x+40=75
ans:
slower speed=35 mph
faster speed=75 mph
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