A recipe says to use 1.5 cups of flour to make 24 cookies. What is the constant of proportionality that relates the number of cookies made, y, to the number of cups of flour used, x? a. 0.6 b. 3 c. 24 d. 16

Answer: 16

Step-by-step explanation:

The constant of proportionality is a ratio that exist between two directly proportional quantities. From the question, recipe says to use 1.5 cups of flour to make 24 cookies.

y = the number of cookies made

x = the number of cups of flour used

y = kx

k = y/x

k = 24/1.5

k = 16

Therefore, the constant of proportionality which relates the number of cookies made, y, to number of cups of flour used, x is 16.