document.write( "Question 1057529: you paid $31 to ship 8 packages. the small packages ship for $3.50 each, the large package ship for $5 each. how many of each did you ship? \n" ); document.write( "
Algebra.Com's Answer #672577 by Cromlix(4381)![]() ![]() You can put this solution on YOUR website! Hi there, \n" ); document.write( "Small and large packages = 8 \n" ); document.write( "Make small packages = x and large packages y \n" ); document.write( "x + y = 8.......Eq(1) \n" ); document.write( "3.5x + 5y = 31.......Eq(2) \n" ); document.write( "Multiply Eq(1) by 3.5 \n" ); document.write( "3.5x + 3.5y = 28.......Eq(1) \n" ); document.write( "3.5x + 5y = 31.........Eq(20 \n" ); document.write( "Subtract Eq(1) from Eq(2) \n" ); document.write( "......1.5y = 3 \n" ); document.write( ".........y = 2 \n" ); document.write( "Substitute y = 2 into Eq(1) \n" ); document.write( "x + y = 8 \n" ); document.write( "x + 2 = 8 \n" ); document.write( "x = 6 \n" ); document.write( "6 small parcels and 2 large parcels. \n" ); document.write( "Hope this helps :-) \n" ); document.write( " |