Question

Selena has 31 days to complete her quilt for the county fair. The blue squares in the quilt can be sewn at a rate of 4 squares per day, and the white squares at a rate of 7 squares per day. The quilt can have up to 96 squares total. The blue fabric b costs about $0.80 per square and the white fabric w costs about $1.20 per square. Selena wants to keep costs at a minimum. Write an inequality that expresses the total number of squares to be sewn.

Answer 1

Sewing rate is irrelevant because even if she used ONLY blue squares, she could sew 124 squares in 31 days. That stuff is thrown in just to confuse you. The cost function is simply number of blue squares times 80 cents plus number of white squares times $1.20.
So.. f(b, w) = 0.80b + 1.20w

Answer 2

does that answer your question?

Answer 3

not really that would be the the function that describes the cost of the quilt and what i need is an inequality that expresses the total number of squares to be sewn.

Answer 4

something like this?
4b+7w(less than or = to) 31

Answer 5

because you have 4xb in 31 days and 7xw in 31 days

Answer 6

okay thanks