document.write( "Question 72706: Troy does yard work earning $25 for mowing lawns and $40 the \"works\", if he earned $370. How many yards did he mow and how many got the \"works\"? \n" ); document.write( "
Algebra.Com's Answer #51979 by josmiceli(19441) You can put this solution on YOUR website! To make it easier, first notice that the number of lawns mowed has to be even. \n" ); document.write( "If it were odd, The total money earned would have to end in \"5\" \n" ); document.write( "Make a chart with m = # lawns mowed and w = # of \"works\" done \n" ); document.write( " \n" ); document.write( "m..w \n" ); document.write( "2..8 \n" ); document.write( "4..x \n" ); document.write( "6..x \n" ); document.write( "8..x \n" ); document.write( "10..3 \n" ); document.write( "12..x \n" ); document.write( "14..x \n" ); document.write( "Try the combinations yourself. The only ones that can possibly \n" ); document.write( "give you $370 is m=2,w=8 \n" ); document.write( "and m=10,w=3 \n" ); document.write( " \n" ); document.write( " |