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)\"\" \"About 
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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 :-)
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