document.write( "Question 170346This question is from textbook Introductory Algebra
\n" ); document.write( ": Solve the problem. Ron and Kathy are ticket-sellers at their class play, Ron handling student tickets that sell for $2.00 each and Kathy selling adult tickets for $5.50 each. If their total income for 30 tickets was $105.50, how many did Ron sell? \n" ); document.write( "

Algebra.Com's Answer #125741 by Mathtut(3670) $\"\"$ $\"About$

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lets call rons tickets(student tickets) s and lets call kathy's tickets(adult tickets) a.
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\n" ); document.write( "s+a=30.............eq 1--->a=30-s
\n" ); document.write( "2s+5.50a=105.50....eq 2
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\n" ); document.write( "take a's value in eq 1 and plug it into eq 2
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\n" ); document.write( "2s+5.50(30-s)=105.50
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\n" ); document.write( "2s-165-5.5s=105.50
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\n" ); document.write( "3.5s=59.5
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\n" ); document.write( " $\"highlight%28s=17%29\"$ amount of tickets Ron sold\r
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