### Home > CAAC > Chapter 2 > Lesson 2.2.2 > Problem2-106

2-106.

You can use a proportion to solve this problem. Once you findthe amount of sugar necessary for 10 cookies, simply multiplyby 2 to find the amount necessary for 20 cookies.

Notice that it takes 35 grams of sugar to create10 cookies. Divide 35 by 10 to get the unit rate.

Unit rate: 3.5 grams of sugar per cookie

Proportions, again, will be very useful. A sample proportion is provided below.

$\frac{100\text{ cookies}}{350\text{ grams}}=\frac{2\text{ cookies}}{x\text{ grams}}$

x = 7

Complete the table in the eTool below to solve the problem.
Click the link at right for the full version of the eTool: AC 2-106 HW eTool