The little Town Fine Arts Center charges $21 per adult and $10 per senior citizen for its performances. on a recent weekend evening when 559 people paid admission, the receipts were $7493. How many who paid were senior citizens?
1 Answer
Nov 8, 2016
Explanation:
Let
and
We are told
[1]
and
[2
We could rearrange [1] as
[3]
Then substituting
[4]
[5]
[6]
The substituting
[7]