document.write( "Question 550759: A change purse contains a total of 100 nickels and dimes. The total value of the coins is $7. How many coins of each type does the purse contain? \n" ); document.write( "
Algebra.Com's Answer #359189 by htmentor(1343)\"\" \"About 
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A change purse contains a total of 100 nickels and dimes. The total value of the coins is $7. How many coins of each type does the purse contain?
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\n" ); document.write( "Let n = the number of nickels
\n" ); document.write( "Then 100 - n = the number of dimes
\n" ); document.write( "We can write the following expression for the total value:
\n" ); document.write( "5n + 10(100-n) = 700
\n" ); document.write( "solve for n:
\n" ); document.write( "5n + 1000 - 10n = 700
\n" ); document.write( "5n = 300
\n" ); document.write( "n = 60
\n" ); document.write( "So the number of nickels is 60, the number of dimes is 40
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