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 3 tsp 3 tsp 9 tsp 9 tsp 27 tsp 27 tsp 18 tsp
To solve this problem, you can set up a proportion because the amount of baking soda should be directly proportional to the amount of flour. The original ratio is 2 teaspoons of baking soda to 6 pounds of flour.
The proportion looks like this:
2 tsp baking soda / 6 lbs flour = x tsp baking soda / 9 lbs flour
To solve for x, you cross-multiply and divide:
(2 tsp baking soda * 9 lbs flour) / 6 lbs flour = x tsp baking soda
18 tsp baking soda / 6 = x tsp baking soda
x = 3 tsp baking soda
Therefore, Lisa should add 3 teaspoons of baking soda to 9 pounds of flour.