Question

A party rental company has chairs and tables for rent. The total cost to rent 3 chairs and 5 tables is $49 . The total cost to rent 9 chairs and 7 tables is $77 . What is the cost to rent each chair and each table?

Answer 1

Explanation:

Answer 2

Modeling the above problem in matrix form we have,
[3 5;9 7]*[x y]'=[49 77]'
AX=b
X=inv(A)*b
X=[1.7500 8.7500]'
ie x=1.7500 and y=8.7500