document.write( "Question 886530: Maria , Amy , and Sadie share food expensive. Amy pays $10 a month less than Maria. Sadie pays twice as much as Amy . If the monthly food bill is $310 how much does each pay \n" ); document.write( "
Algebra.Com's Answer #536002 by JulietG(1812) You can put this solution on YOUR website! A + M + S = 310 \n" ); document.write( "M = A+10 \n" ); document.write( "S = 2A \n" ); document.write( "Substitute the known values from the bottom equations into the top equation: \n" ); document.write( "A + M + S = 310 \n" ); document.write( "A + (A+10) + 2A = 310 \n" ); document.write( "4A + 10 = 310 \n" ); document.write( "Subtract 10 from each side \n" ); document.write( "4A = 300 \n" ); document.write( "Divide each side by 4 \n" ); document.write( "A = 75 \n" ); document.write( ". \n" ); document.write( "If Amy pays $75, then Sadie pays twice that much ($150) and Maria pays $85 ($10 more than Amy). \n" ); document.write( "75 + 150 + 85 = 310 \n" ); document.write( " |