document.write( "Question 1049079: In his motorboat, Bill Ruhberg travels upstream at top speed to his favorite fishing spot, a distance of 528
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\n" ); document.write( "hr. Returning, he finds that the trip downstream, still at top speed, takes only 5.5
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\n" ); document.write( "hr. Find the rate of Bill's boat and the speed of the current. Let x = the rate of the boat in still water and y = the rate of the current. \n" ); document.write( "

Algebra.Com's Answer #664693 by josgarithmetic(39623) $\"\"$ $\"About$

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Constant Travel Rate Rule to relate rate, time, distance corresponding to R, T, D, is RT=D.\r
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document.write( "                SPEED           TIME         DISTANCE\r\n" );
document.write( "UPSTREAM        x-y             6            528\r\n" );
document.write( "DOWNSTR         x+y             5.5          528\r\n" );
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\n" ); document.write( "\n" ); document.write( "You have a system of equations, $\"system%28%28x-y%29%2A6=528%2C%28x%2By%29%2A%285.5%29=528%29\"$ .
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