document.write( "Question 593540: Admission at the Computer Expo is $1.50 for kids and $4.00 for adults. On day, 2200 people went to the Expo and $5050 was collected. How many kids and how many adults attended that day? \n" ); document.write( "

Algebra.Com's Answer #376351 by mananth(16946) $\"\"$ $\"About$

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x Kids
\n" ); document.write( "y Adults
\n" ); document.write( "Total attended
\n" ); document.write( "x+y = 2200 .............1
\n" ); document.write( "Kids 1.5 Adults 4 Amount collected 5050
\n" ); document.write( "1.50 x + 4.00 y = 5050 .............2
\n" ); document.write( "Eliminate y
\n" ); document.write( "multiply (1)by -4
\n" ); document.write( "Multiply (2) by 1
\n" ); document.write( "-4 x -4 y = -8800
\n" ); document.write( "1.50 x + 4 y = 5050
\n" ); document.write( "Add the two equations
\n" ); document.write( "-2.50 x = -3750
\n" ); document.write( "/ -2.50
\n" ); document.write( "x = 1500.00
\n" ); document.write( "plug value of x in (1)
\n" ); document.write( "1.00 x + 1.00 y = 2200.00
\n" ); document.write( "1500.00 + 1.00 y = 2200.00
\n" ); document.write( " 1.00 y = 2200.00 + -1500.00
\n" ); document.write( " 1.00 y = 700.00
\n" ); document.write( " y = 700.00
\n" ); document.write( "1500 Kids
\n" ); document.write( "700 Adults
\n" ); document.write( "m.ananth@hotmail.ca
\n" ); document.write( " \n" ); document.write( "

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