document.write( "Question 39981: To get to his parents house John must travel at a speed of 60m/hr on land then use a motor boat whos speed is 20 mi/hr in still water. John goes by land to a dock and then travels on a river against a current of 4 mi/hr. He reaches his parents home in 4.5 hrs. The return trip takes him 3.5 hrs. How far does his parents live from his house?\r
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document.write( "thanx \n" );
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Algebra.Com's Answer #25376 by Paul(988)![]() ![]() ![]() You can put this solution on YOUR website! Total time = 4.5+3.5=8 hours \n" ); document.write( "EQUATION: \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "16x+60x=7680 \n" ); document.write( "76x=7680 \n" ); document.write( "x=101 (rounded) \n" ); document.write( "Hence, the distance is 101 miles. \n" ); document.write( "Paul. \n" ); document.write( " |