document.write( "Question 164832: Joan and Maria earn money by babysitting. If Joan earns twice as much as Maria, and the two girls earn a total of $40, how much does Maria earn? \n" ); document.write( "
Algebra.Com's Answer #121455 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! Joan and Maria earn money by babysitting. If Joan earns twice as much as Maria, and the two girls earn a total of $40, how much does Maria earn? \n" ); document.write( "----------------------- \n" ); document.write( "Using one variable: \n" ); document.write( "Let Joan earnings be \"x\"; then Maria earned \"40-x\". \n" ); document.write( "---------------------- \n" ); document.write( "EQUATION: \n" ); document.write( "j = 2M \n" ); document.write( "x = 2(40-x) \n" ); document.write( "x = 80-2x \n" ); document.write( "3x = 80 \n" ); document.write( "x = $26.67 (Joan's earnings) \n" ); document.write( "40-x = $13.33 (Maria's earnings) \n" ); document.write( "================ \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |