document.write( "Question 956771: Sam has $2.25 all in nickels and dimes. If he has a total of 36 coins, how many nickels and dimes does Sam have? \n" ); document.write( "

Algebra.Com's Answer #584678 by Fombitz(32388) $\"\"$ $\"About$

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$\"N%2BD=36\"$
\n" ); document.write( " $\"5N%2B10D=225\"$
\n" ); document.write( "Multiply the first equation by 5 and subtract it from the second.
\n" ); document.write( " $\"5N%2B10D-5N-5D=225-180\"$
\n" ); document.write( " $\"5D=45\"$
\n" ); document.write( " $\"D=9\"$
\n" ); document.write( "So then,
\n" ); document.write( " $\"N%2B9=36\"$
\n" ); document.write( " $\"N=27\"$
\n" ); document.write( "27 nickels and 9 dimes \n" ); document.write( "

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