To solve this problem, we can set up a proportion based on the amount of baking soda to the weight of flour.
Let "x" represent the amount of baking soda in tsp to be added to 9 lbs of flour.
We have the following proportion:
1 tsp baking soda / 6 lbs flour = x tsp baking soda / 9 lbs flour
Now, we can cross multiply to find "x":
6 lbs * x tsp = 1 tsp * 9 lbs
6x = 9
Dividing both sides by 6:
x = 9 / 6
x = 1.5
Therefore, Lisa should add 1.5 tsp of baking soda to 9 lbs of flour.
Lisa adds to tsp baking soda to 6 lbs of flour. how much baking soda should she add to 9 lbs of flour?
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