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

Question

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

y=0.50x−0.10
y equals 0.50 x minus 0.10

y=0.40x
y equals 0.40x

y=0.50x
y equals 0.50x

y=0.60x

Answer 1

To determine the equation that represents the relationship between the cost of the cookies $y$ and the number of cookies $x$ during the sale, we need to calculate the price per cookie during the sale.

Originally, the baker charges $2.00 for 4 cookies. Therefore, the price per cookie is:

$$\text{Price per cookie}=\frac{2.00}{4}=0.50$$

During the sale, the baker charges $0.10 less for each cookie:

$$\text{Sale price per cookie}=0.50-0.10=0.40$$

The relationship between the total cost $y$ and the number of cookies $x$ is given by:

$$y=0.40x$$

Thus, the correct equation is:

$$y=0.40x$$

So, the appropriate response is:

y=0.40x