document.write( "Question 263321: Mrs. Sanders had 80 coins. Some of them were 1-dollar coins, and some were 50 cent coins. The total amount added up to $50. How many coins of each kind were there. \n" ); document.write( "
Algebra.Com's Answer #194035 by richwmiller(17219)\"\" \"About 
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d+f=80
\n" ); document.write( "100d+50f=5000\r
\n" ); document.write( "\n" ); document.write( "d=20 f=60
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