document.write( "Question 71287This question is from textbook Beginning & intermediate algebra
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document.write( ": the jones family drove to Disneyland at 50mph and returned on the same route at 40mph. Find the distance to Disneyland if the total driving time was 7.2hrs. \n" );
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Algebra.Com's Answer #50997 by checkley75(3666)![]() ![]() ![]() You can put this solution on YOUR website! x/50+x/40=7.2 \n" ); document.write( "(40x+50x)/2000=7.2 \n" ); document.write( "90x/2000=7.2 now cross multiply \n" ); document.write( "90x=2000*7.2 \n" ); document.write( "90x=14400 \n" ); document.write( "x=14400/90 \n" ); document.write( "x=160 miles to Disneyland \n" ); document.write( "proof \n" ); document.write( "160/50+160/40=7.2 \n" ); document.write( "3.2+4=7.2 \n" ); document.write( "7.2=7.2 \n" ); document.write( " \n" ); document.write( " |