Problema Solution
One day a store sold 17 sweatshirts. White ones cost $9.95 and yellow ones cost $13.50. In all $222.40 worth of sweatshirts were sold. How many of each color were sold?
Answer provided by our tutors
Let x be the white and y be the yellow sweatshirts.
x+y=17
or, x=17-y
9.95x+13.5y=222.4
or, 9.95(17-y)+13.5y=222.4
or,(9.95*17)-9.95y+13.5=222.4
Solving, y=15
now, x+15=17
or, x=17-15=2
Therefore, Answer= 2 white and 15 yellow swetshirts