document.write( "Question 862969: Last year Ana spent the following:
\n" );
document.write( " 30% of her salary on rent
\n" );
document.write( " 2\5 of her salary on entertainment
\n" );
document.write( " 1\4 of her salary on living expenses.
\n" );
document.write( " Ana spent 7200 US Dollars in total.
\n" );
document.write( " She saved the rest of her salary.
\n" );
document.write( " Work out how much money she saved. \n" );
document.write( "
Algebra.Com's Answer #520104 by Alan3354(69443)![]() ![]() You can put this solution on YOUR website! Last year Ana spent the following: \n" ); document.write( " 30% of her salary on rent \n" ); document.write( " 2\5 of her salary on entertainment \n" ); document.write( " 1\4 of her salary on living expenses. \n" ); document.write( " Ana spent 7200 US Dollars in total. \n" ); document.write( " She saved the rest of her salary. \n" ); document.write( " Work out how much money she saved. \n" ); document.write( "======================== \n" ); document.write( "Change it all to fractions. \n" ); document.write( " 3/10 of her salary on rent \n" ); document.write( " 2/5 of her salary on entertainment \n" ); document.write( " 1/4 of her salary on living expenses. \n" ); document.write( "Add them \n" ); document.write( "3/10 + 2/5 + 1/4 = 6/20 + 8/20 + 5/20 = 19/20*S \n" ); document.write( "(19/20)*S = 7200 \n" ); document.write( "S = 7200*20/19 \n" ); document.write( "------ \n" ); document.write( "She saved the remaining 1/20 of S = 7200/19 \n" ); document.write( "saved =~ $378.95 \n" ); document.write( " |