document.write( "Question 1153850: Devon purchased tickets to an air show for 5 adults and 2 children. The total cost for Devon was $128. Peter purchased tickets to same air show for 3 adults and 4 children. Peter's total cost was $116. Find the price of an adult's ticket and a child's ticket. Use a system of linear equations. \n" ); document.write( "
Algebra.Com's Answer #776161 by greenestamps(13200)\"\" \"About 
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\n" ); document.write( "\"5a%2B2c+=+128\"
\n" ); document.write( "\"3a%2B4c+=+116\"

\n" ); document.write( "I will describe in words what I would do to solve this pair of equations; you can do the work to find the solution.

\n" ); document.write( "(1) double the first equation to find the cost of 10 adult tickets and 4 children's tickets.
\n" ); document.write( "(2) compare that to the second equation (algebraically, subtract one equation from the other) to find the cost of 7 adult tickets.
\n" ); document.write( "(3) use that result to find the cost of one adult ticket.
\n" ); document.write( "(4) use the cost of each adult ticket in either of the original equations to determine the cost of each children's ticket.

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