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 the function that describes the cost of the quilt.

Choose one answer.
a. f(b, w) = 0.80b + 1.20w
b. 96 = 4b + 7w
c. 96 = 0.80b + 1.20w
d. f(b, w) = 4b + 7w

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 the function that describes the cost of the quilt.

Choose one answer.
	 a. f(b, w) = 0.80b + 1.20w	
	 b. 96 = 4b + 7w	
	 c. 96 = 0.80b + 1.20w	
	 d. f(b, w) = 4b + 7w

anonymous · Answer

can anyone help?

anonymous · Answer

i would go with the first one. you just want the cost, you are not told how many of each squares are made and the 31 day part has nothing to do with it.
if you use $b$ black squares and $w$ white ones, the total cost is $.8b+1.2w$

anonymous · Answer

thank u soo much u juss saved my life!! lol