SOLUTION: If Betty drove at 40mph towards Mary's house, and Mary drove 30mph towards Betty's house and started 2 hours earlier. Their homes are 270 miles apart, how long will it take them t
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Question 27234: If Betty drove at 40mph towards Mary's house, and Mary drove 30mph towards Betty's house and started 2 hours earlier. Their homes are 270 miles apart, how long will it take them to meet after Betty starts. I came up with,
30(t+2)= 40t
30t + 60 = 40t
10t = 60
t = 6
Is this correct, thanks
Answer by Paul(988) (Show Source): You can put this solution on YOUR website!
Let the time be x
Equation:
40x+30(x+2)=270
40x+30x+60=270
70x=210
x=3
Hence, it will take them 3 hours to meet.
Paul.
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