Question

Janice baked 27 cookies with 9 ounces of chocolate chips. How many cookies could she bake with one ounce of chocolate chips?

Answer 1

Question: Janice baked 27 cookies with 9 ounces of chocolate chips. How many cookies could she bake with one ounce of chocolate chips?​

Solution:

Consider the following diagram:

Now, by cross-multiplication, we get the number of cookies equivalent to 1 ounce of chocolate chips:

$x\text{ cookies = }\frac{27\text{ cookies x 1 ounce}}{9\text{ ounces}}$

this is equivalent to:

$x\text{ cookies = }\frac{27\text{ cookies x 1 ounce}}{9\text{ ounces}}=\text{ 3 cookies.}$

then, the correct answer is:

3 cookies.