Answer:
T-shirts= $7.5 and Shorts=$10
Step-by-step explanation:
T-shirts = X
shorts = Y
3x + 2y =42.5
5x + 3y = 67.5
use addition method
5 (3x + 2y = 42.5)
-3 (5x + 3y = 67.5)
15x + 10 y = 212.5
-15x -9y = 202.5. then..
15x - 15x= 0
10y - 9y = y
212.5 - 202.5 = 10 therefore y=10
substitute y into any equation
3x + 2(10)= 42.5
3x +20 = 42.5
3x= 42.5-20
x= 22.5/3
x=7.5
so T= $7.5 and S= $10
