Question

If it cost $2.10 for 42 Oreo cookies what is the cost per cookie

Answer 1

$0.05

Step-by-step explanation:

Given that cost of 42 Oreos cookies costs $2.10

42 oreo cookies = $2.10

To get the cost per cookie,

1 cookie = x

Divide both expressions

42/1 = 2.10/x

Cross multiply

42 * x = 1 * 2.10

42x = 2.10

Divide both sides by 42;

42x/42 = 2.10/42

x = 2.10/42

x = 0.05

Hence the cost per cookie is $0.05