Jennie is making popcorn. The recipe calls for 1/2 cup of butter, 3 tablespoons of kernels, and 1 teaspoon of salt. If she uses 10 tablespoons of kernels, how much butter dose she need? round your answer to the nearest hundredth.

Answer 1

Since the amount of popcorn kernels used is not the same as the recipe, the proportion can be used to find the amount of butter needed.

Let x be the amount of butter needed.
Using proportions, we can set up the equation:
3 tablespoons / 1/2 cup = 10 tablespoons / x

Cross multiplying the proportion:
3x = 10 * 1/2
3x = 5

Dividing both sides by 3 to solve for x:
x = 5/3

Therefore, Jennie needs approximately 1.67 cups of butter rounded to the nearest hundredth.