SOLUTION: jerry spent 2.5 h biking up mount lowe, rested at the top for 30 min, and biked down in 1.5 hr. how far did he bike if his rate of ascent was 3 km/h less than his rate of descent?
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-> SOLUTION: jerry spent 2.5 h biking up mount lowe, rested at the top for 30 min, and biked down in 1.5 hr. how far did he bike if his rate of ascent was 3 km/h less than his rate of descent?
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Question 57738: jerry spent 2.5 h biking up mount lowe, rested at the top for 30 min, and biked down in 1.5 hr. how far did he bike if his rate of ascent was 3 km/h less than his rate of descent? Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! jerry spent 2.5 h biking up mount lowe, rested at the top for 30 min, and biked down in 1.5 hr. how far did he bike if his rate of ascent was 3 km/h less than his rate of descent?
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Biking up DATA:
time = 2.5 hr. ; rate= x-3 km/hr ; distance = rt= 2.5(x-3) km
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Biking down Data:
time = 1.5 hr; rate = x km/hr ; distance = 1.5x km
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EQUATION:
1.5x=2.5x-7.5
-x=-7.5
x=7.5 km/hr (Biking down rate)
Distance= 7.5(1.5)=11.25 km (Biking down distance Biking up distance)
Cheers,
Stan H.
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