A baker is selling sugar cookies in his shop. He charges $2.00 for 4 cookies. He has a sale over the weekend and charges $0.10 less for each cookie. Write an equation to represent the relationship between the cost of the cookies, y

, and the number of cookies bought, x
, during the sale.(1 point)
Responses

y=0.40x
y equals 0.40x

y=0.50x
y equals 0.50x

y=0.60x
y equals 0.60x

y=0.50x−0.10

1 answer

First, we need to find the price per cookie before the sale and then determine the new price during the sale.

  1. The baker charges $2.00 for 4 cookies, so the price per cookie before the sale is: \[ \text{Price per cookie} = \frac{2.00}{4} = 0.50 \]

  2. During the sale, the price of each cookie is $0.10 less, so the new price per cookie is: \[ 0.50 - 0.10 = 0.40 \]

  3. Now, we can express the relationship between the cost of the cookies \(y\) and the number of cookies \(x\) during the sale: \[ y = 0.40x \]

Therefore, the correct equation to represent the relationship during the sale is: \[ y = 0.40x \]