SOLUTION: It took John 12 hours riding his bike to make the round trip to his uncle's. If he averaged 20 mph out and 30 mph back, how long did he travel each way? (Round answer to nearest te
Algebra.Com
Question 315526: It took John 12 hours riding his bike to make the round trip to his uncle's. If he averaged 20 mph out and 30 mph back, how long did he travel each way? (Round answer to nearest tenth.)
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
It took John 12 hours riding his bike to make the round trip to his uncle's.
If he averaged 20 mph out and 30 mph back, how long did he travel each way?
:
Let d = dist traveled one way
Write a time equation; time = dist/speed
+ = 12
multiply eq by 60, results
3d + 2d = 60(12)
5d = 720
d = = 144 mi one way
:
Find the time at each speed
= 7.2 hrs at 20 mph
= 4.8 hrs at 30 mph
RELATED QUESTIONS
It took John 12 hours riding his bike to make the round trip to his uncle's. If he... (answered by ewatrrr)
It took John 12 hours riding his bike to make the round trip to his uncle's. If he... (answered by richwmiller,scott8148)
It took John 12 hours riding his bike to make the round trip to his uncles, if he... (answered by Alan3354)
Wyatt left his house and rode his bike into town at 10 mph. Along the way he got a flat... (answered by Alan3354,josgarithmetic,ikleyn)
It took John 2 hours to bike from Dublin to Pickerington at a constant speed. The return... (answered by htmentor)
Can you please help me sove this problem? It is, "Matt traveled to his friends house and... (answered by lwsshak3)
john traveled 40 mph to his friends house
on the return trip back home he traveled 45... (answered by ankor@dixie-net.com)
Mr. Zaleva flew his private plane from his office to his companies storage facility,... (answered by stanbon)
man rode his bike six miles to work. The wind reduced his average speed on the way home (answered by josgarithmetic)