2 years ago

Bob bought 24 hockey tickets for $83. Adult tickets cost $5.50 and child tickets cost $2.00. How many of each did he buy . Show

your work .

1 answer:

6 0

$x-\ number\ of\ adult\ tickets\\\\
y-\ number\ of\ children\ tickets\\\\
x+y=24\ \ \ \ | x=24-y\\\\
x*5,5+2*y=83\\\\
5,5(24-y)+2y=83\\\\132-5,5y+2y=83\\\\
132-3,5y=83\ \ \ \ | subtract\ 132\\\\
-3,5y=-49\ \ \ | divide\ by\ -3,5\\\\y=14\\\\
x=10\\\\
He\ bought\ 10\ adult\ tickets\ and\ 14\ children\ tickets.
$

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