Answer:
8 shirts, $60
Step-by-step explanation:
Company A: 20+5x=y
Company B: 7.50x=y
Since y represents the amount of money and x represents the number of shirts, you set them equal to each other and solve for x to find the number of shirts where they will have the same amount of money.
20+5x=7.50x
20=2.50x
x=8 shirts
Now that we know they will have the same amount of money at 8 shirts, you just plug in 8 for x on one of the starting equations. You can plug 8 in to both to double check that it gives the same value for both.
20+5(8)= 60
7.50(8)= 60
We have verified that with 8 shirts, they will both be making 60 dollars.
