document.write( "Question 863008: Helping my child do her math and could use some help.\r
\n" ); document.write( "\n" ); document.write( "A person rowed her boat upstream a distance of 60 mil then rowed back to the starting point. The total time for the trip was 16 hours. If the rate of the current was 2 mph, find the average speed of the boat in still water.\r
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Algebra.Com's Answer #520133 by ewatrrr(24785) $\"\"$ $\"About$

You can put this solution on YOUR website!


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document.write( "Hi
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document.write( " 60(s+2) + 60(s-2) = 16(s+2)(s-2)
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document.write( " 30(s+2) + 30(s-2) = 8(s+2)(s-2)
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document.write( "   60s = 8(s^2 - 4)
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document.write( "    8s^2 - 60s -32 = 0
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document.write( "    2s^2 -15x - 8 = 0    
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document.write( "   (2s +1)(s -8) = 0    (Tossing out the negative solution for unit measure)
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document.write( "           s = 8mph
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document.write( "  CHECKING our answer***
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document.write( "Wish You the Best in your Studies.
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