document.write( "Question 998619: One grocery store charges $10.00 for 8 cans of soup. A second store charges $6.00 for 5 cans of soup, but you need to join a purchase club for $3.00 to buy them. Write the cost model equations for both stores and find the number of cans that makes the costs equal. \n" ); document.write( "

Algebra.Com's Answer #616380 by josgarithmetic(39618) $\"\"$ $\"About$

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n, number of cans of soup\r
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\n" ); document.write( "\n" ); document.write( "One store: $\"10%2A%281%2F8%29%2An\"$ , although the store might not allow this way in practice.\r
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\n" ); document.write( "\n" ); document.write( "Second store: $\"6%2A%281%2F5%29%2An%2B3\"$ \r
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\n" ); document.write( "\n" ); document.write( "Those are the cost formulas, and you could assume the prices given were just a grouping for efficiency of stating the prices.\r
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\n" ); document.write( "\n" ); document.write( "For what number of cans, n, will the costs at both stores be equal.
\n" ); document.write( " $\"10%281%2F8%29n=6%281%2F5%29n%2B3\"$
\n" ); document.write( "-
\n" ); document.write( " $\"%285%2F4%29n=%286%2F5%29n%2B3\"$
\n" ); document.write( " $\"%285%2F4-6%2F5%29n=3\"$
\n" ); document.write( " $\"%2825%2F20-24%2F20%29n=3\"$
\n" ); document.write( " $\"%281%2F20%29n=3\"$
\n" ); document.write( " $\"highlight%28n=60%29\"$ \r
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\n" ); document.write( "\n" ); document.write( "Sixty cans at each place. \n" ); document.write( "

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