document.write( "Question 100329: I am not sure how to do this.
\n" ); document.write( "There were 1500 people at a high school football game. Student tickets were $2.00 and adult tickets were $3.50. The total receipts for the game were $3825. How many students bought tickets? \r
\n" ); document.write( "\n" ); document.write( "Let a = the number of adult tickets purchased.
\n" ); document.write( "Let s = the number of student tickets purchased.
\n" ); document.write( "a. Write a system of equations that can be used to determine the number of adult and student tickets purchased.
\n" ); document.write( "b. Determine the number of adults tickets sold and the number of student tickets sold. Use mathematics to explain how you determined your answer.
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Algebra.Com's Answer #73067 by checkley71(8403)\"\" \"About 
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A+S=1500 A=1500-S
\n" ); document.write( "3.5A+2S=3825 NOW REPLACE A BY(1500-S)
\n" ); document.write( "3.5(1500-S)+2S=3825
\n" ); document.write( "5250-3.5S+2S=3825
\n" ); document.write( "-1.5S=3825-5250
\n" ); document.write( "-1.5S=-1425
\n" ); document.write( "S=-1425/-1.5
\n" ); document.write( "S=950 ANSWER FOR THE NUMBER OF STUDENT TICKETS SOLD.
\n" ); document.write( "A+950=1500
\n" ); document.write( "A=1500-950
\n" ); document.write( "A=550 ANSWER FOR THE NUMBER OF ADULT TICKETS SOLD.
\n" ); document.write( "PROOF
\n" ); document.write( "3.5*550++2*950=3825
\n" ); document.write( "1925+1900=3825
\n" ); document.write( "3825=3825\r
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