Question

You can buy 12 cookies for $4. What is the unit rate for the cost of each cookie?​

Answer 1

Roughly $0.34

Explanation:

Set up an equation:

Variable x = cost of one cookie

12cookies/$4 = 1cookie/x

12/4 = 1/x

Cross multiply

12 × x = 4 × 1

12x = 4

Divide both sides by 12

12x ÷ 12 = 4 ÷ 12

1x = 4/12

x = 0.333333

x = is about $0.34

Answer 2

$0.33 per cookie

Explanation:

The unit rate (cost per cookie) is

$4

---------------- = $0.33 per cookie

12 cookies