SOLUTION: A car is driving from point A to point B at 50mph and from point B to point A at 60mph. The whole trip took 11hrs. How mach distance was driven in that time...

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Question 459968: A car is driving from point A to point B at 50mph and from point B to point A at 60mph. The whole trip took 11hrs. How mach distance was driven in that time...
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
A car is driving from point A to point B at 50mph and from point B to point A at 60mph.
The whole trip took 11 hrs. How mach distance was driven in that time...
:
Let d = the one-way distance
:
Write a time equation: Time = dist/speed
:
A-B time + B-A time = 11 hrs
d%2F50 + d%2F60 = 11
multiply by 300
300*d%2F50 + 300*d%2F60 = 300(11)
Cancel the denominators, resulting in:
6d + 5d = 3300
d = 3300%2F11
d = 300 mi is the one-way dist
:
Total dist: 2(300) = 600 driven in 11 hrs