Question

The equation 12x + 15y = 390 represents the total revenue during a one-day fundraiser. In the equation, x represents the number of youth T-shirts sold, and y represents the number of adult T-shirts sold. If there were 10 youth T-shirts sold, how many adult T-shirts were sold?

18 T-shirts
20 T-shirts
24 T-shirts
45 T-shirts

Answer 1

The answer should be A ( 18 T-shirts)

Explanation:

I just took the test

Answer 2

12×10+15y=390
120+15y=390
15y=270
y=18

So 18 adult t-shirts were sold