document.write( "Question 74308: At a ice cream shop cones were $1.10 and sundaes were $2.35 in one day they sold a total of 172 cones and sundaes totaling $294.20 how many were cones?\r
\n" ); document.write( "\n" ); document.write( "I have no idea how to solve this could you please help? Thank you
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Algebra.Com's Answer #53314 by jim_thompson5910(35256)\"\" \"About 
You can put this solution on YOUR website!
Let c=# of cones, s=# of sundaes
\n" ); document.write( "\"1.1c%2B2.35s=294.2\"This is the equation of the 2 products sold which equals the total money made
\n" ); document.write( "\"c%2Bs=172\" Here is the total number of products sold which equals 172
\n" ); document.write( "\"s=172-c\"Solve for s, plug this into \"1.1c%2B2.35s=294\"
\n" ); document.write( "\"1.1c%2B2.35%28172-c%29=294.2\"
\n" ); document.write( "\"1.1c%2B404.2-2.35c=294.2\"
\n" ); document.write( "\"1.1c-2.35c=294.2-404.2\"
\n" ); document.write( "\"-1.25c=-110\"
\n" ); document.write( "\"c=88\"
\n" ); document.write( "So the number of cones sold was 88. Use this to find the number of sundaes sold
\n" ); document.write( "\"88%2Bs=172\"
\n" ); document.write( "\"s=172-88\"
\n" ); document.write( "\"s=84\"
\n" ); document.write( "So the number of sundaes sold was 84.\r
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\n" ); document.write( "\n" ); document.write( "Here's another way to tackle the problem\r
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Solved by pluggable solver: Linear System solver (using determinant)
Solve:
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\n" ); document.write( " Any system of equations:
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\n" ); document.write( " has solution
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\n" ); document.write( " or
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\n" ); document.write( " (c=88, s=84}
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\n" ); document.write( "\n" ); document.write( "Which gives us the same answer, but it's just another way to solve the problem.
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