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Mathematics 11 Online
OpenStudy (anonymous):

Jim paddles from one shore of a lake three miles wide at 4 mph, and John paddles from the opposite shore at 5 mph. How long will they travel before they meet? A. 1 hour, 24 minutes B. 20 minutes C. 27 minutes D. 3 hours Please don't tell me the answer. I just want to know the steps to figuring it out

OpenStudy (anonymous):

You can model this by using an equation. lets say t represents time in hours. You could set it up as 4t+5t=Distance. The 4 and the 5 represent speed and (as above) t is time. Speed * time = distance. Therefore put in the distance you want to solve for (that is, how far they must travel TOTAL) and you get this \[4t+5t=3\] Solve for t.

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