document.write( "Question 223580: Please help with this problem: Norman stated across a lake 10 miles wide in is fishing boat at 12 miles per hour. After his motor went out, he had to row the rest of the way at only 3 mph. If he was rowing for half the time that the total trip took, how long did the total trip take?\r
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Algebra.Com's Answer #167132 by nerdybill(7384)\"\" \"About 
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Norman stated across a lake 10 miles wide in is fishing boat at 12 miles per hour. After his motor went out, he had to row the rest of the way at only 3 mph. If he was rowing for half the time that the total trip took, how long did the total trip take?
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\n" ); document.write( "Applying the distance formula of:
\n" ); document.write( "d = rt
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\n" ); document.write( "Let t = total time to get across the lake
\n" ); document.write( "then
\n" ); document.write( "t/2 = time he was rowing
\n" ); document.write( "t/2 = time he was using the motor
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\n" ); document.write( "12(t/2) + 3(t/2) = 10
\n" ); document.write( "Multiply both sides by 2:
\n" ); document.write( "12t + 3t = 20
\n" ); document.write( "15t = 20
\n" ); document.write( "t = 20/15
\n" ); document.write( "t = 4/3
\n" ); document.write( "t = 1 and 1/3 hours (total time)
\n" ); document.write( "or
\n" ); document.write( "1 hour 20 minutes
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