document.write( "Question 1124966: After sailing 14 mi, a sailor changed direction and increased the boat's speed by 4 mph. An additional 15 mi was sailed at the increased speed. The total sailing time was 3 h. Find the rate of the boat for the first 14 mi. \n" ); document.write( "

Algebra.Com's Answer #741285 by josgarithmetic(39620) $\"\"$ $\"About$

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\n" ); document.write( "After sailing 14 mi, a sailor changed direction and increased the boat's speed by 4 mph. An additional 15 mi was sailed at the increased speed. The total sailing time was 3 h. Find the rate of the boat for the first 14 mi.
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document.write( "              SPEED        TIME           DISTANCE\r\n" );
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document.write( "First Part       r          14/r            14\r\n" );
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document.write( "Second Part     r+4         15/(r+4)        15\r\n" );
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document.write( "Total                       3\r\n" );
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\n" ); document.write( "\n" ); document.write( " $\"14%2Fr%2B15%2F%28r%2B4%29=3\"$ \n" ); document.write( "

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