Question

Jack's pancake recipe calls for 2 teaspoons baking powder and 3 cups of flour.

How much baking powder is needed if Jack uses 9 cups of flour?

Enter your answer in the box.

teaspoons

Answer 1

To find out how much baking powder is needed for 9 cups of flour, you can set up a proportion based on the original recipe.

The original ratio is:
- 2 teaspoons baking powder for 3 cups of flour.

We want to find out how many teaspoons (let's call it \( x \)) of baking powder is needed for 9 cups of flour, setting up the proportion:

\[
\frac{2 \text{ teaspoons}}{3 \text{ cups}} = \frac{x \text{ teaspoons}}{9 \text{ cups}}
\]

Now cross-multiply to solve for \( x \):

\[
2 \cdot 9 = 3 \cdot x
\]

This simplifies to:

\[
18 = 3x
\]

Now, divide both sides by 3:

\[
x = \frac{18}{3} = 6
\]

Therefore, Jack needs **6 teaspoons** of baking powder for 9 cups of flour.