document.write( "Question 126287: A carnival sells tickets for $2 each to adults and $1.50 each to children. If the carnival sold 500 tickets for a total price of $800, how many adults bought tickets? \n" ); document.write( "

Algebra.Com's Answer #92522 by josmiceli(19441) $\"\"$ $\"About$

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$\"a\"$ = number of adult tickets bought
\n" ); document.write( " $\"c\"$ = number of childrens tickets bought
\n" ); document.write( " $\"2a+%2B+1.5c+=+800\"$
\n" ); document.write( " $\"a+%2B+c+=+500\"$
\n" ); document.write( " $\"c+=+500+-+a\"$
\n" ); document.write( "----------------
\n" ); document.write( " $\"2a+%2B+1.5%28500+-+a%29+=+800\"$
\n" ); document.write( " $\"2a+%2B+750+-+1.5a+=+800\"$
\n" ); document.write( " $\".5a+=+50\"$
\n" ); document.write( " $\"a+=+100\"$ answer
\n" ); document.write( "100 adults bought tickets
\n" ); document.write( "check answer
\n" ); document.write( " $\"c+=+500+-+a\"$
\n" ); document.write( " $\"c+=+500+-+100\"$
\n" ); document.write( " $\"c+=+400\"$
\n" ); document.write( " $\"2a+%2B+1.5c+=+800\"$
\n" ); document.write( " $\"2%2A100+%2B+1.5%2A400+=+800\"$
\n" ); document.write( " $\"200+%2B+600+=+800\"$
\n" ); document.write( " $\"800+=+800\"$
\n" ); document.write( "OK \n" ); document.write( "

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