document.write( "Question 316562: the college bookstore sells two types of graphing calculators. One calculator sells for $79 and the other for $46. iF THE BOOKSTORE SOLD 24 calculators for a total of $1302.00 how many of each were sold. \n" ); document.write( "

Algebra.Com's Answer #226457 by josmiceli(19441) $\"\"$ $\"About$

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Let $\"a\"$ = number of $79 ones sold
\n" ); document.write( "Let $\"b\"$ = number of $46 ones sold
\n" ); document.write( "given:
\n" ); document.write( "(1) $\"a+%2B+b+=+24\"$
\n" ); document.write( "(2) $\"79a+%2B+46b+=+1302\"$
\n" ); document.write( " Multiply both sides of (1) by $\"46\"$ and
\n" ); document.write( "subtract (1) from (2)
\n" ); document.write( "(2) $\"79a+%2B+46b+=+1302\"$
\n" ); document.write( "(1) $\"-46a+-+46b+=+-1104\"$
\n" ); document.write( " $\"+33a+=+198\"$
\n" ); document.write( " $\"a+=+6\"$
\n" ); document.write( "and
\n" ); document.write( " $\"a+%2B+b+=+24\"$
\n" ); document.write( " $\"6+%2B+b+=+24\"$
\n" ); document.write( " $\"b+=+18\"$
\n" ); document.write( "6 $79 calculators and 18 $46 calculators were sold \n" ); document.write( "

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