Question

Adam placed an order with an online clothing store. He ordered 5 shirts and 4 pairs of shoes, and he paid $155. His friend ordered 3 shirts and 2 pairs of shoes. His bill totaled $85. Assume that all of the shirts are the same price and all of the shoes are the same price. What is the cost of one shirt and one pair of shoes?

Answer 1

A shirt costs 15$ and a pair of shoes costs 20$

Explanation:

I took this test and got it right.

Answer 2

One shirt cost $15

One pair of shoes cost $20

Explanation:

Let

x-----> the cost of one shirt

y----> the cost of one pair of shoes

we know that

`5x+4y=155` -----> equation A

`3x+2y=85` -----> equation B

Solve the system of equations by graphing

The solution of the system of equations is the intersection point both graphs

The solution is the point (15,20)

see the attached figure

Therefore

One shirt cost $15

One pair of shoes cost $20