SOLUTION: you can bike a mountain at a speed of 2.5 miles per hours lower than your speed coming down the mountain. If it takes you six hours to bike the mountain but only 135 minutes to com

Question 1100825: you can bike a mountain at a speed of 2.5 miles per hours lower than your speed coming down the mountain. If it takes you six hours to bike the mountain but only 135 minutes to come down the mountain, what is your speed coming down?
Answer by jorel1380(3719) (Show Source): You can put this solution on YOUR website!
Let n be your speed going down the mountain. Then your speed going up is n-2.5. So:
6(n-2.5)=2.25n
6n-15=2.25n
3.75n=15
n=4 mph down the mountain
n-2.5=1.5 mph up the mountain
☺☺☺☺
RELATED QUESTIONS
You ride your bike x miles per hour up a mountain for 45 minutes. On the way down the... (answered by josgarithmetic)

Karina rode her bike up a mountain trail at an average speed of 4 miles per hour. Then... (answered by Alan3354)

A trip to Mount Pilatus ,in Lucerne,Switzerland involves riding an incline railroad up to (answered by ikleyn,Theo,MathTherapy)

gregory hiked from the base of a mountain to its top at an average rate of 2 miles per... (answered by ikleyn)

Ryan travels 10 miles on his bike in the same amount of time that it takes Seth to travel (answered by josmiceli)

Hi Bob went up a mountain at 5km per hour and down the mountain at 7.5 km per hour.... (answered by josgarithmetic,greenestamps,ikleyn)

At 2:00 Braden rented a mountain bike,he returned the bike at 5:00, after cycling 18... (answered by richwmiller)

I can walk to the top of a mountain in 1 1/2 hours. You can do it in 2 hours. Your... (answered by amoresroy)

Round all answers to the nearest cent. At 2:00pm Braden rented a mountain bike at 5:00,... (answered by robertb)