Irene R. answered 01/12/20
BS in Mechanical Engineering and Certified math teacher for 13 years
You can solve this problem using a system of equations. Let's let c represent the cost of one chair and t represent the cost of one table.
Using the info in your problem, we can write the following two equations:
2c + 3t = 23
6c + 5t = 43
We can multiply the first equation by -3 to solve the system:
-6c + -9t = -69
6c + 5t = 43
-4t = -26
t = $6.50
Now we can use the second equation (or the first if you prefer) to find the cost of 1 chair because we now know that the cost of a table is $6.50:
6c + 5t = 43
6c + 5* 6.50 = 43
6c + 32.50 = 43
6c + 32.50 - 32.50 = 43 - 32.50
6c = 10.50
c = $1.75
So the cost to rent one table is $6.50 and the cost for one chair is $1.75