Question

Question
Lisa adds 2 tsp baking soda to 6 lbs. of flour. How much baking soda should she add to 9 lbs. of flour?(1 point)
Responses

18 tsp
18 tsp

27 tsp
27 tsp

3 tsp
3 tsp

9 tsp
9 tsp

Answer 1

To find out how much baking soda Lisa should add to 9 lbs. of flour, we can use a proportion based on the amount she added to 6 lbs.

She adds 2 tsp of baking soda to 6 lbs of flour.

To determine how much baking soda to add for 9 lbs, we set up a ratio:

\[
\frac{2 \text{ tsp}}{6 \text{ lbs}} = \frac{x \text{ tsp}}{9 \text{ lbs}}
\]

Cross-multiplying gives:

\[
2 \times 9 = 6 \times x
\]
\[
18 = 6x
\]

Now, divide both sides by 6:

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

So, Lisa should add **3 tsp** of baking soda to 9 lbs. of flour.

The correct response is: **3 tsp**.