document.write( "Question 281525: A discount store sold plastic cups for $3.50 each and ceramic cups for $4 each. If 400 cups were sold for a total of $1458, how many cups of each type were sold? What was the dollar value of each type of cup sold?
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Algebra.Com's Answer #204523 by JBarnum(2146) $\"\"$ $\"About$

You can put this solution on YOUR website!
$\"p\"$ =Plastic cups
\n" ); document.write( " $\"c\"$ =ceramic cups
\n" ); document.write( " $\"p%2Bc=400\"$
\n" ); document.write( " $\"3.50p%2B4c=1458\"$
\n" ); document.write( "u can use substitution or elimination method
\n" ); document.write( "i will use elimination method as it is easy and faster
\n" ); document.write( " $\"p%2Bc=400\"$ multiply by a -3.50
\n" ); document.write( " $\"-3.50p-3.50c=-1400\"$
\n" ); document.write( " $\"3.50p%2B4c=1458\"$ add them together
\n" ); document.write( " $\"0.5c=58\"$
\n" ); document.write( " $\"c=116\"$
\n" ); document.write( " $\"3.5%28116%29=highlight%28406%29\"$ dollars of ceramic cups
\n" ); document.write( " $\"p%2Bc=400\"$
\n" ); document.write( " $\"p%2B116=400\"$
\n" ); document.write( " $\"p=284\"$
\n" ); document.write( " $\"4%28284%29=highlight%281136%29\"$ dollars of plasitic cups \n" ); document.write( "

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