SOLUTION: Hi tutor, i really need help with math. We are doing algebraic word problems, and i can do most of them but im stumped on some. Help would be greatly appreciated, thank

SOLUTION: Hi tutor, i really need help with math. We are doing algebraic word problems, and i can do most of them but im stumped on some. Help would be greatly appreciated, thank - you very

Question 419673: Hi tutor, i really need help with math. We are doing algebraic word problems, and i can do most of them but im stumped on some. Help would be greatly appreciated, thank - you very much. Question : Two boys on bicycles start toward each other at the same time from two towns 70 km apart. The first travels at 12 km/h. Wat is the speed of the other boy if they meet in 2.5 hours? Can you please show the work as too how you got the answer. Thank - you so much!
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 70 km apart.
The first travels at 12 km/h. Wat is the speed of the other boy if they meet in 2.5 hours?
:
Let s = the speed of the other boy
:
When the two boys meet, they have traveled a total of 70 km
Write dist equation: dist = speed * time
:
1st boys dist + 2nd boys dist = 70 km
2.5(12) + 2.5s = 70
30 + 2.5s = 70
2.5s = 70 - 30
2.5s = 40
s =
s = 16 km/hr is the other boy's speed
:
:
Check this
12(2.5) + 2.5(16) = 70; confirms our solution of s=16
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