Question

To make popcorn, a movie theater uses 9 tablespoons of oil for each cup of popcorn kernels.Using this information, complete the table for the missing amounts of oil and popcom kemels.Tablespoons of OilCups of Popcom Kemels1849Claim What are you doing?) Show Evidence (How did )workReasoning (Why)

Answer 1

We will solve as follows:

*The solutions will be for each problem (horizontal)

Since we have that they use 9 tablespoons of oil to make 1 cup of popcorn kernels, and they have 18, we can deduce that they made 2 popcorn kernels.

For 4 popcorn kernels, they used 36 tablespoons of oil.

For 9 popcorn kernels, they used 81 tablespoons of oil.

*The reason these values are the solution is that they grow in a linear manner, and so if they produce a number of popcorn kernels we will always be able to determine the number of tablespoons of oil used by multiplying the number of popcorn kernels times the number of tablespoons of oil that it takes to make one.