document.write( "Question 1084132: A box contains 74 coins, only dimes and nickels. The amount of money in the box is $4.70. How many dimes and how many nickels are in the box? \n" ); document.write( "
Algebra.Com's Answer #698191 by addingup(3677)\"\" \"About 
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d+n =74 subtract d from both sides:
\n" ); document.write( "n = 74-d
\n" ); document.write( "0.10d+0.05n = 4.70 substitute for n:
\n" ); document.write( "0.10d+0.05(74-d) = 4.70
\n" ); document.write( "0.10d+3.70-0.05d = 4.70
\n" ); document.write( "0.05d = 1
\n" ); document.write( "d = 20
\n" ); document.write( "n = 74-20 = 54
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