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? A. 18 T-shirts B.20 T-shirts C.24 T-shirts D.45 T-shirts
The answer is 18. Substitute in the 10 for x and solve for y. Answer is B. Hope this helps!!!
hello : 12x + 15y = 390 when x= 10 : 12(10) +15y =390 15y = 270. y= 18......answer : A. 18 T-shirts