Math Algebra!!!!

Question

A party rental company has chairs and tables to rent. There were two customers who rented both chairs and tables last week. The table shows the number of chairs, the number of tables, and the total cost in dollars for those two customers.

First customer - 3 chairs and 2 tables = 25 total

Second customer - 5 chairs and 6 tables = 65 total

How much does each chair and each table cost (in dollars) to rent?

Answer 1

3c +2t = 25

5c +6t = 65

9c +6t = 75

5c +6t = 65

4c =10

c = 10/4 = $2.50 per chair

t = (25-3(2.5))/2 = (25-7.5)/2 = 17.5/2 = $8.75 per table

5(2.5) +6(8.75) = 12.5 + 52.50 = 65

3(2.5)+2(8.75) = 7.5 +17.5 = 25