SOLUTION: Two children, who are 252 meters apart start walking toward each other at the same instant at rates of 1.4m/s and 2.1m/s. when will they meeT? How far will each have walked?

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Question 342665: Two children, who are 252 meters apart start walking toward each other at the same instant at rates of 1.4m/s and 2.1m/s.
when will they meeT?
How far will each have walked?

Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Rate*Time=Distance
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R%5B1%5D%2At=D%5B1%5D
R%5B2%5D%2At=D%5B2%5D
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Find t when D%5B1%5D%2BD%5B2%5D=252
D%5B1%5D=1.4t
D%5B2%5D=2.1t
1.4t%2B2.1t=252
3.5t=252
t=72sec
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Child 1 walked
D%5B1%5D=1.4%2872%29=100.8m
Child 2 walked
D%5B2%5D=2.1%2872%29=151.2m