Proportional relationships unit test help pis
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Jenny's making popcorn the recipe calls for 1/2 a cup of butter 3 tablespoons of kernels in one tablespoon of salt if she uses 10 tablespoons of kernels how much butter will she need
To find out how much butter Jenny will need if she uses 10 tablespoons of kernels, we can set up a proportion using the given information.
The recipe states that for 3 tablespoons of kernels, we need 1/2 a cup of butter. Let's represent this relationship as:
(3 tablespoons of kernels) / (1/2 a cup of butter) = (10 tablespoons of kernels) / (x cups of butter)
To solve for x (the amount of butter), we can cross-multiply and then divide:
(3/1) / (1/2) = (10/x)
6/1 = 10/x
Cross-multiplying:
6x = 10
Dividing both sides by 6:
x = 10/6
Simplifying:
x = 5/3
So, if Jenny uses 10 tablespoons of kernels, she will need 5/3 (or 1 and 2/3) cups of butter.