Oscar is making a loaf of bread in cooling class. The teacher gives him a recipe that calls for 3/4 tsp of yeast for every 1/2 cup of flour. If he plans to use 1 tsp of yeast, how much flour does he need in order to keep the bread tasting the same?
A. 2 cups
B. 1 cup
C. 2/3 cup
D. 3/8 cup
To keep the bread tasting the same, Oscar needs to maintain the ratio of 3/4 tsp of yeast to 1/2 cup of flour.
Let's set up a proportion to find out how much flour he needs:
(3/4 tsp) / (1/2 cup) = (1 tsp) / (x cups)
Cross-multiplying, we get: (3/4 tsp) * (x cups) = (1 tsp) * (1/2 cup)
Multiplying, we get: (3x/4) = (1/2)
To isolate x, we multiply both sides by 4/3:
(4/3) * (3x/4) = (1/2) * (4/3)
x = 2/3
Therefore, Oscar needs 2/3 cup of flour in order to keep the bread tasting the same.
The answer is C. 2/3 cup