375 lower reserved tickets were purchased and 365 upper reserved tickets were purchased
Step-by-step explanation:
Let x be the number lower reserved tickets
and
y be the number of upper reserved tickets
Then according to given statements
[tex]x+y = 740\ \ \ \ Eqn\ 1\\9.50x+8y = 6482.50\ \ \ \ Eqn\ 2[/tex]
From equation 1:
[tex]x = 740-y[/tex]
Putting in equation 2
[tex]9.5(740-y)+8y = 6482.50\\7030-9.5y+8y = 6482.50\\7030-1.5y = 6482.50[/tex]
Subtracting 7030 from both sides
[tex]7030-7030-1.5y = 6482.50-7030\\-1.5y=-547.5[/tex]
Dividing both sides by -1.5
[tex]\frac{-1.5y}{-1.5} = \frac{-547.5}{-1.5}\\y = 365[/tex]
Putting y = 365 in equation 1
[tex]x+365 = 740\\x = 740 - 365\\x = 375[/tex]
Hence,
375 lower reserved tickets were purchased and 365 upper reserved tickets were purchased
Keywords: Linear equations, Variables
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