Lisa adds 2 tsp baking soda to 6 Ibs. of flour. How much baking soda should she add to 9 Ibs. of flour?
To determine the amount of baking soda to add to 9 Ibs. of flour, we can set up a proportion using the relationship between the amount of baking soda and the amount of flour.
Let x represent the amount of baking soda to add to 9 Ibs. of flour.
Since there is 2 tsp. of baking soda for every 6 Ibs. of flour, we can set up the proportion:
2 tsp / 6 Ibs = x tsp / 9 Ibs.
Cross-multiplying, we have:
2 tsp * 9 Ibs = 6 Ibs * x tsp.
18 tsp = 6 Ibs * x tsp.
Dividing both sides by 6 Ibs, we get:
18 tsp / 6 Ibs = x tsp.
Simplifying, we have:
3 tsp = x tsp.
Therefore, Lisa should add 3 tsp of baking soda to 9 Ibs. of flour.