document.write( "Question 290807: a jar containing only nickels and dimes contains 60 coins. The value of all the coins in the jar is $4.45. solve by elimination to find the amount of nickels and dimes are in the jar
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Algebra.Com's Answer #210456 by checkley77(12844)\"\" \"About 
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N+D=60 MULTIPLY THIS EQUATION BY -.05 & ADD
\n" ); document.write( ".05N+.10D=4.45
\n" ); document.write( "-.05N-.05D=-3
\n" ); document.write( "-----------------
\n" ); document.write( ".05D=1.45
\n" ); document.write( "D=1.45/.05
\n" ); document.write( "D=29 DIMES.
\n" ); document.write( "60-29=31 NICKELS.
\n" ); document.write( "PROOF:
\n" ); document.write( ".05*31+.10*29=4.45
\n" ); document.write( "1.55+2.90=4.45
\n" ); document.write( "4.45=4.45
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