document.write( "Question 181466This question is from textbook algebra structure & method book1
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document.write( ": Gene spent 10 minutes riding his bicycle to a friends house. He left his bike there and with a friend, walked 15 minutes to the gm. Gene rides his bicycle 10 km/hr faster than he walks. If the entire trip covered 2.75 km. how far is it from his friends house to the gym? \n" );
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Algebra.Com's Answer #136080 by stanbon(75887) ![]() You can put this solution on YOUR website! Gene spent 10 minutes riding his bicycle to a friends house. He left his bike there and with a friend, walked 15 minutes to the gm. Gene rides his bicycle 10 km/hr faster than he walks. If the entire trip covered 2.75 km. how far is it from his friends house to the gym? \n" ); document.write( "------------------------------------- \n" ); document.write( "Bike DATA: \n" ); document.write( "time = (1/6)hr ; rate = x+10 km/h ; distance = rt=(1/6)(x+10) km \n" ); document.write( "--------------------------------------------------------------------- \n" ); document.write( "Walk DATA: \n" ); document.write( "time = (1/4)hr ; rate = x km/h ; distance = rt = (1/4)x km \n" ); document.write( "-------------------------------------------------------------------- \n" ); document.write( "Equation: \n" ); document.write( "distance + distance = 2.75 km \n" ); document.write( "(1/6)(x+10) + (1/4)x = 2.75\r \n" ); document.write( "\n" ); document.write( "(1/6 + 1/4)x + (5/3) = 11/4\r \n" ); document.write( "\n" ); document.write( "(5/12)x + (5/2) = 11/4\r \n" ); document.write( "\n" ); document.write( "Multiply thru by 12 to get:\r \n" ); document.write( "\n" ); document.write( "5x + 30 = 33 \n" ); document.write( "5x = 3\r \n" ); document.write( "\n" ); document.write( "x = 3/5 km/h \n" ); document.write( "------------------- \n" ); document.write( "Distance from friend's house to the gym? \n" ); document.write( "That is the walking distance = (1/4)x \n" ); document.write( "= (1/4)(3/5) = (3/20) km \n" ); document.write( "============================== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " \n" ); document.write( " |