onltmeread

04-09-2007, 11:33 PM

A motorboat can go 8 miles downstream on a river in 20 minutes. It takes 30 minutes for this boat to go back upstream the same 8 miles. Find the speed of the current.

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i know the answer is 4mi/h but i don't know how you get that ......

i just need help overall. i'm not even sure about what equations to put. for the system....

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i know the answer is 4mi/h but i don't know how you get that ......

i just need help overall. i'm not even sure about what equations to put. for the system....