document.write( "Question 311358: hello i need help with this one please
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document.write( "two cars start from the same place traveling in opposite directions.one car travels 4 miles per hour faster than the other car.find the speeds if after 5 hours they are 530 miles apart. thanks \n" );
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Algebra.Com's Answer #222696 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! i need help with this one please \n" ); document.write( "Two cars start from the same place traveling in opposite directions. \n" ); document.write( "One car travels 4 miles per hour faster than the other car. \n" ); document.write( "Find the speeds if after 5 hours they are 530 miles apart. \n" ); document.write( "-------------- \n" ); document.write( "1st Car DATA: \n" ); document.write( "time = 5 hrs ; rate = x mph ; distance = rt = 5x miles \n" ); document.write( "---- \n" ); document.write( "2nd Car DATA: \n" ); document.write( "time = 5 hrs ; rate = x+4 mph ; distance = rt = 5(x+4) miles \n" ); document.write( "====================== \n" ); document.write( "Equation: \n" ); document.write( "miles + miles = 530 miles \n" ); document.write( "5x + 5(x+4) = 530 \n" ); document.write( "5x + 5x + 20 = 530 \n" ); document.write( "10x = 510 \n" ); document.write( "x = 51 mph (one of the cars) \n" ); document.write( "x+4 = 55 mph (the other car) \n" ); document.write( "================================ \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "====================== \n" ); document.write( " |