document.write( "Question 743624: Bobbi has nine stamps, some of which are 32-cent stamps and some of which are 23-cent stamps. The total value of all the stamps is $2.52 , how many of her stamps are worth 32-cents \n" ); document.write( "

Algebra.Com's Answer #453009 by josmiceli(19441) $\"\"$ $\"About$

You can put this solution on YOUR website!
Let $\"+x+\"$ = number of $\"+23+\"$ cent stamps
\n" ); document.write( " $\"+9+-+x+\"$ = number of $\"+32+\"$ cent stamps
\n" ); document.write( "--------------
\n" ); document.write( " $\"+23x+%2B+32%2A%28+9+-+x+%29+=+252+\"$ ( in cents )
\n" ); document.write( " $\"+23x+%2B+288+-+32x+=+252+\"$
\n" ); document.write( " $\"+-9x+=+252+-+288+\"$
\n" ); document.write( " $\"+-9x+=+-36+\"$
\n" ); document.write( " $\"+x+=+4+\"$
\n" ); document.write( " $\"+9+-+x+=+5+\"$
\n" ); document.write( "5 of her stamps are worth 32 cents
\n" ); document.write( "check answer:
\n" ); document.write( " $\"+23x+%2B+32%2A%28+9+-+x+%29+=+252+\"$
\n" ); document.write( " $\"+23%2A4+%2B+32%2A%28+9+-+4+%29+=+252+\"$
\n" ); document.write( " $\"+92+%2B+32%2A5+=+252+\"$
\n" ); document.write( " $\"+92+%2B+160+=+252+\"$
\n" ); document.write( " $\"+252+=+252+\"$
\n" ); document.write( "OK
\n" ); document.write( " \n" ); document.write( "

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