A recipe calls for 1.5 cups of sugar for every 1/2 teaspoons of vanilla. How much vanilla should be used for every 1 cup of sugar?

1.5/0.5 = 3:1 = 1 : 1/3

Not many measuring sets have 1/3 tsp spoons, however ...

0.5/1.5 = 1/3 teaspoons of vanilla / cup of sugar.

To determine how much vanilla should be used for every 1 cup of sugar, we can set up a proportional relationship between the amounts of sugar and vanilla.

The recipe states that for every 1.5 cups of sugar, we need 1/2 teaspoon of vanilla. Now, we want to find out how much vanilla is needed for 1 cup of sugar.

Let's set up the proportion:

(1.5 cups of sugar) / (1/2 teaspoon of vanilla) = (1 cup of sugar) / (x teaspoons of vanilla)

To solve for x, we can cross multiply:

(1.5) * (x) = (1) * (1/2)

1.5x = 1/2

Next, divide both sides of the equation by 1.5:

x = (1/2) / (1.5)

Simplifying the right-hand side:

x = 1/2 * 2/3

x = 2/6

x = 1/3

Therefore, for every 1 cup of sugar, you should use 1/3 teaspoon of vanilla.

To determine how much vanilla should be used for every 1 cup of sugar, we can set up a ratio based on the given information.

The recipe states that we need 1.5 cups of sugar for every 1/2 teaspoon of vanilla. Let's write this as a ratio:

1.5 cups sugar : 0.5 teaspoon vanilla

Now, we can calculate how much vanilla should be used for 1 cup of sugar.

Step 1: Set up the proportion using the ratio:

1.5 cups sugar = 0.5 teaspoon vanilla
1 cup sugar = x teaspoon vanilla

Step 2: Cross-multiply and solve for x:

1.5 * x = 0.5 * 1
1.5x = 0.5
x = 0.5 / 1.5
x = 0.333...

Hence, you should use approximately 0.333 teaspoons (or 1/3 teaspoon) of vanilla for every 1 cup of sugar in the recipe.