Question

Rachel uses 1/3 cup of oil for every cake she bakes. If she used 4 cups of oil one day, she made __ cakes. If she used 2 cups of oil on another day, she made __ cakes.
1st blank
3
4
6
12

2cd blank
3
4
6
12

15 points !!!

Answer 1

First answer: 12

Second answer: 6

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How to get these answers

She uses 1/3 of a cup for 1 cake, so we have this ratio

1/3 cup : 1 cake

Multiply both sides by 3 and we end up with

1 cup : 3 cakes

Then multiply both sides by 4 to change "1 cup" to "4 cups" and we have

4 cups : 12 cakes which is the answer to the first part

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For part 2, we'll follow the same steps as before, but instead of multiplying both sides by 4, we do 2 instead because we're dealing with 2 cups of oil.

1/3 cup : 1 cake

3*(1/3 cup) : 3*(1 cake)

1 cup : 3 cakes

2*(1 cup) : 2*(3 cakes)

2 cups : 6 cakes which is the answer to the second part

Answer 2

Answer:

• 12 cakes

• 6 cakes

Step-by-step explanation:

• 1/3 amount of oil has been used for each cake

• 4 cups have been used in total.

In order to find the answer we will need to divide.

4/(1/3) = 12

We have divided the amount of cups used in total by the amount of cups used to make each cake.

Similarly, if they used 2 cups.

2/(1/3)= 6

Answer

12 cakes and 6 cakes