SOLUTION: A movie theater sells tickets for $7.00 each. Senior citizens receive a discount of $2.00. One evening the theater sold 400 tickets and took in $2600.00 in revenue. How many ticket

Question 171390: A movie theater sells tickets for $7.00 each. Senior citizens receive a discount of $2.00. One evening the theater sold 400 tickets and took in $2600.00 in revenue. How many tickets were sold to senior citizens? How many were sold to non-senior citizens?

Answer by Mathtut(3670) (Show Source): You can put this solution on YOUR website!
let the number of tickets sold to non seniors and seniors , be n and s respectively
:
n+s=400.........eq 1
7n+5s=2600......eq 2
:
lets rewrite eq 1 to s=400-n and place that value into eq 2.
:

:
distribution
:
combining terms
:
number of non senior ticket sold
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