Sean mixes coconut oil with several other ingredients to make homemade toothpaste for his dog Rocky. He uses 1/2 cup of coconut oil to make 2/3 cup of toothpaste. How much coconut oil does Sean use per cup of toothpaste?

3/4 cup of coconut

Step-by-step explanation:

Given:

cup of coconut for cup of toothpaste

Required

Determine how much oil for a cup of toothpaste

Represent Coconut with C and Toothpaste with T;

So,

When

We're to solve for

C when T = 1

This can be represented as:

--- 1/2 to 2/3

Cross Multiply:

Solve for C

This means Sean needs 3/4 cup of coconut oil

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