document.write( "Question 292142: ZACHARIAS HAS A TOTAL OF 65 COINS, ALL OF WHICH ARE EITHER DIMES OR NICKELS. THE TOTAL VALUE OF THE COINS IS $5.80. FIND THE NUMBER OF EACH TYPE OF COIN. \n" ); document.write( "
Algebra.Com's Answer #211105 by stanbon(75887)\"\" \"About 
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ZACHARIAS HAS A TOTAL OF 65 COINS, ALL OF WHICH ARE EITHER DIMES OR NICKELS. THE TOTAL VALUE OF THE COINS IS $5.80. FIND THE NUMBER OF EACH TYPE OF COIN.
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\n" ); document.write( "Equations:
\n" ); document.write( "Quantity Eq:::: d + n = 65
\n" ); document.write( "Value Eq::::::10d+ 5n = 580 cents
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\n" ); document.write( "Multiply thru the Quantity Eq. by 10; subtract and solv for \"n\":
\n" ); document.write( "10d + 10n = 650
\n" ); document.write( "10d + 5n = 580
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\n" ); document.write( "5n = 70
\n" ); document.write( "n = 14 (# of nickels)
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\n" ); document.write( "Substitute and solve for \"d\":
\n" ); document.write( "d + 14 = 65
\n" ); document.write( "d = 51 (# of dimes)
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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