document.write( "Question 343930: Susan has a number of dimes and quarters in her pocket. \r
\n" ); document.write( "\n" ); document.write( "She has a total of 84 coins, and the total dollar value of all dimes and quarters is $15.\r
\n" ); document.write( "\n" ); document.write( "Write two equations, using variables “d” and “q” to represent the number of dimes and quarters Susan has.\r
\n" ); document.write( "\n" ); document.write( "Solve those two equations using either the substitution or elimination method to find how many dimes and how many quarters she has.
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Algebra.Com's Answer #246034 by Fombitz(32388)\"\" \"About 
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Total number of coins
\n" ); document.write( "1.\"D%2BQ=84\"
\n" ); document.write( "Total value of coins (in cents)
\n" ); document.write( "\"10D%2B25Q=1500\"
\n" ); document.write( "2.\"2D%2B5Q=300\"
\n" ); document.write( "Multiply eq. 1 by (-2) and add it to eq. 2,
\n" ); document.write( "\"-2D-2Q%2B2D%2B5Q=-168%2B300\"
\n" ); document.write( "\"3Q=132\"
\n" ); document.write( "\"highlight%28Q=44%29\"
\n" ); document.write( "Then from eq. 1,
\n" ); document.write( "\"D%2B44=84\"
\n" ); document.write( "\"highlight%28D=40%29\"
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\n" ); document.write( "Forty dimes and forty four quarters.
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