document.write( "Question 1159179: The rate in which a river flows is measured in miles per hour. If a boat travels at a speed of 15 miles per hour down stream and reaches its destination sooner than expected, explain what effect the current had on the rate of the boat. \n" ); document.write( "
Algebra.Com's Answer #782166 by ikleyn(52810)\"\" \"About 
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\n" ); document.write( "\n" ); document.write( "When the boat moves with the current (i.e. downstream), its effective speed (= the speed relative to the banks of the river)\r
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\n" ); document.write( "\n" ); document.write( "is the sum of the speed of the boat in still water and the speed of the current.\r
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\n" ); document.write( "\n" ); document.write( "Therefore, traveling with the current takes LESS TIME than in still water.\r
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