document.write( "Question 132686: marie has 24 coins in half-dollars and dimes. the total value is $3.60. how many coins of each type does she have? \n" ); document.write( "

Algebra.Com's Answer #96975 by josmiceli(19441) $\"\"$ $\"About$

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$\"d\"$ = number of dimes
\n" ); document.write( " $\"h\"$ = number of half-dollars
\n" ); document.write( " $\"10d+%2B+50h+=+360\"$
\n" ); document.write( " $\"d+%2B+h+=+24\"$
\n" ); document.write( " $\"h+=+24+-+d\"$
\n" ); document.write( " $\"10d+%2B+50%2A%2824+-+d%29+=+360\"$
\n" ); document.write( " $\"10d+%2B+1200+-+50d+=+360\"$
\n" ); document.write( " $\"-40d+=+-840\"$
\n" ); document.write( " $\"d+=+21\"$
\n" ); document.write( " $\"h+=+24+-+d\"$
\n" ); document.write( " $\"h+=+3\"$
\n" ); document.write( "She has 3 half-dollars and 21 dimes
\n" ); document.write( "check:
\n" ); document.write( " $\"10d+%2B+50h+=+360\"$
\n" ); document.write( " $\"10%2A21+%2B+50%2A3+=+360\"$
\n" ); document.write( " $\"210+%2B+150+=+360\"$
\n" ); document.write( " $\"360+=+360\"$
\n" ); document.write( "OK \n" ); document.write( "

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