document.write( "Question 1016372: John has a collection of 75 coins. His collection has only nickels and dimes. He has 4 times as many dimes as nickels. How many nickels are in his collection
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Algebra.Com's Answer #632771 by fractalier(6550)\"\" \"About 
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Call then numbers of nickels and dimes, n and d.
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\n" ); document.write( "n + d = 75 and
\n" ); document.write( "d = 4n
\n" ); document.write( "Now substitute and get
\n" ); document.write( "n + 4n = 75
\n" ); document.write( "5n = 75
\n" ); document.write( "n = 15 nickels
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