.One day a store sold 18 sweatshirts. White ones cost $9.95 and yellow cost $13.50. In all, $214.60 worth of sweatshirts were sold. How many of each color were sold?

White ?
Yellow ?

Question

.One day a store sold 18 sweatshirts. White ones cost $9.95 and yellow cost $13.50. In all, $214.60 worth of sweatshirts were sold. How many of each color were sold?

White ? 
Yellow ?

anonymous · Answer

Solve simultaneously the equation representing total dollar sales:$$9.95W+13.5Y=214.6$$where W and Y are the number of white and yellow shirts sold, respectively, and:$$W+Y=18$$since 18 shirts were sold in total. This gives W=8 and Y=10.