SOLUTION: Ryan travels 10 miles on his bike in the same amount of time that it takes Seth to travel 7.5 miles on his mountain bike. Ryan travels 3 miles per hour faster than Seth. Find eac
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Question 959292: Ryan travels 10 miles on his bike in the same amount of time that it takes Seth to travel 7.5 miles on his mountain bike. Ryan travels 3 miles per hour faster than Seth. Find each speed
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = the time in hours for both bikers
Ler = Seth's speed in mi/hr
Ryan's equation:
(1)
Seth's equation:
(2)
-------------------
(2)
Substitute (2) into (1)
(1)
(1)
(1)
(1)
(1)
and
----------------
Seth's speed is 9 mi/hr
Ryan's speed is 12 mi/hr
-----------------------
check:
(1)
(1)
(1) hrs
and
(2)
(2)
(2)
OK
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