One day a sold 30 sweatshirts. White ones cost $10.95 and yellow ones cost $13.50. In all, $371.85 worth of of sweatshirts were sold. How many of each color were sold?

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Answer 1 · 2017-01-09T07:47:30

13 white colored sweatshirts and 17 yellow colored sweatshirts were sold.

Let the number of white sweatshirts be '#x#' and yellow sweatshirts be '#y#'

Then,

Writing the given questions in equation form:

#x+y=30#

or #x=30-y# (Subtracting y from both sides)

Again, From Question

#10.95x +13.50y = 371.85#

Putting the value of x as 30-y from above, we get

#328.5-10.95y+13.50y = 371.85#
Solving for y ,
we get
y=17
and
x=13