Question

one day a store sold 21 sweatshirts. white ones cost 11.95$ and yellow cost $12.50. in all 258.65 worth of sweatshirts were sold. how many of each color?

Answer 1

let w=amount or white shirts
y=amount of yellow shirts
so,
w+y=21
11.95*w+12.5*y=258.65
Solve the system & find w & y.