document.write( "Question 224526: If Sue can wash a car in 48 minutes and John can wash a car in 16 minutes, how many minutes will it take them to wash a car working together?\r
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document.write( "I just need to know how to set this problem up. \n" );
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Algebra.Com's Answer #167718 by ptaylor(2198)![]() ![]() You can put this solution on YOUR website! OK \n" ); document.write( "Let x=amount of time it takes them working together to wash a car \n" ); document.write( "Then, together, they wash at the rate of 1/x car per min \n" ); document.write( "Sue washes at the rate of 1/48 car per min \n" ); document.write( "John washes at the rate of 1/16 car per min\r \n" ); document.write( "\n" ); document.write( "So, together, they wash at the rate of 1/48 + 1/16 car per min\r \n" ); document.write( "\n" ); document.write( "So our equation to solve is: \n" ); document.write( "1/48 + 1/16 = 1/x Hint: multiply each term by 48x\r \n" ); document.write( "\n" ); document.write( "I bet you can take it from here :)\r \n" ); document.write( "\n" ); document.write( "Hope this helps---ptaylor \n" ); document.write( " |