Question

the equation 12 x + 5y=20 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 shirts sold how many adult t-shirts were sold

Answer 1

A (18 shirts) is correct.

Answer 2

If you are solving for the question in the picture your answer would be 18. Whiich is letter A.

12x+15y=390 Original Equation
12(10)+15y=390 Replace x with 10
120 + 15y= 390 Mutiply 12 by 10
-120 = -120 subtract 120 on both sides to simplfy the equation
15y= 270 New equation
÷15 = ÷15 To get the variable alone divide 15 on both sides
y=18 Your value for y.