Question

A recipe says to use 3 cups of four to make 48 cookies. What is the constant of proportionally that relates the number of cookies made, y, to the number of cups of four used, ?

A. 20
B. 19
С. 16
D. 18

Answer 1

The constant of proportionality that relates the number of cookies made to the number of cups of flour used is 16.

Step-by-step explanation:

To find the constant of proportionality that relates the number of cookies made, y, to the number of cups of flour used, x, we can set up a proportion using the given information:

3 cups / 48 cookies = x cups / y cookies

Cross-multiplying, we get: 3y = 48x

Divide both sides by 48, we get: y = 16x

Therefore, the constant of proportionality is 16.