A T-shirt shop charges $15 for an adult shirt and $12 for a youth shirt. The total charge for a shirt order was $489. Which equation can be used to represent x, the number of adult shirts sold and y, the number of youth shirts sold?

12x + 15y = 489

27x + 15y = 489

15x + 12y = 489

15x + 3y = 489

x, the number of adult shirts

y, the number of youth shirts

$15 for an adult shirt and $12 for a youth shirt. The total charge for a shirt order was $489.

15x + 12y = 489

Answer

15x + 12y = 489

The answer to this question is C : 15x + 12y = 489.

WHY?

It asks for the number of adult shirts (x represents how much was sold) and youth shirts (y represents how much was sold). $15 was for an adult shirt and $12 was for a youth shirt.

THAT'S WHY

15x + 12y = 489

^ + ^ = ^

adult + youth = total amount