SOLUTION: Two boys on bicycles start toward each other at the same time from two towns 70km apart. The first travels at 12km/h. What is the speed of the other boy if they meet in 2 1/2 hours
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Question 168966: Two boys on bicycles start toward each other at the same time from two towns 70km apart. The first travels at 12km/h. What is the speed of the other boy if they meet in 2 1/2 hours? Answer by ankor@dixie-net.com(22740) (Show Source):
You can put this solution on YOUR website! Two boys on bicycles start toward each other at the same time from two towns 70km
apart. The first travels at 12km/h. What is the speed of the other boy if they
meet in 2 1/2 hours?
:
Let s = speed of the other boy
:
When they meet they will have traveled a total of 70 km
:
Write a distance equation: Dist = time * speed
:
1st boy dist + 2nd boy dist = 70 km
2.5(12) + 2.5s = 70
30 + 2.5s = 70
2.5s = 70 - 30
s =
s = 16 mph speed of the other boy
;
:
Check solution by finding the total dist
30 + 2.5(16) = 70
