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If they bought one peppermint pattie, One lollipop, and One gumdrop,
\n" ); document.write( " the total 21 cents; and you found that it costs the same amount of money to
\n" ); document.write( " buy 2 peppermint patties; & 1 gumdrop costs 2 cents more than a lollipop
\n" ); document.write( " find out the cost of each kind of candy
\n" ); document.write( ":
\n" ); document.write( "\"they bought one peppermint pattie, One lollipop, and One gumdrop, the total 21 cents\"
\n" ); document.write( "p + l + g = 21
\n" ); document.write( ":
\n" ); document.write( "\"it costs the same amount of money to buy 2 peppermint patties\"
\n" ); document.write( "2p = 21
\n" ); document.write( "p = 21/2
\n" ); document.write( "p = 10.5 for one peppermint
\n" ); document.write( "then
\n" ); document.write( "10.5 + l + g = 21
\n" ); document.write( "l + g = 21 - 10.5
\n" ); document.write( "l + g = 10.5
\n" ); document.write( ":
\n" ); document.write( "\"1 gumdrop costs 2 cents more than a lollipop\"
\n" ); document.write( "g = l + 2
\n" ); document.write( "-l + g = 2
\n" ); document.write( ":
\n" ); document.write( "Add the last two equations
\n" ); document.write( "l + g = 2
\n" ); document.write( "-l+ g = 10.5
\n" ); document.write( "------------Adding eliminates l, find g
\n" ); document.write( "2g = 12.5
\n" ); document.write( "g = 12.5/2
\n" ); document.write( "g = 6.25 for one gum drop
\n" ); document.write( ":
\n" ); document.write( "l + 6.25 = 10.5
\n" ); document.write( "l = 10.5 - 6.25
\n" ); document.write( "l = 4.25 for one lollipop
\n" ); document.write( ":
\n" ); document.write( ":
\n" ); document.write( "See if this checks out
\n" ); document.write( "10.5 + 6.25 + 4.25 = 21\r
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