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Practice: Unit Rates for Ratios with Fractions - Level G

Serena makes [tex]2 \frac{1}{4}[/tex] cups of popcorn using [tex]1 \frac{1}{2}[/tex] tablespoons of kernels. She wants to know how many tablespoons of kernels to use to make 6 cups of popcorn.

1. Which is a reasonable estimate for the amount of kernels Serena needs to make 6 cups of popcorn?
- About 4 tablespoons of kernels

2. What amount of kernels does Serena use per cup of popcorn?
- [tex]\frac{2}{3}[/tex] tablespoon(s) of kernels per cup of popcorn

3. At this rate, what amount of kernels does Serena need to make 6 cups of popcorn?
- [tex]\square[/tex] tablespoon(s) of kernels

Answer :

To find out how many tablespoons of kernels Serena needs to make 6 cups of popcorn, let's follow these steps:

1. Determine the Ratio of Kernels to Popcorn:
Serena makes [tex]\(2 \frac{1}{4}\)[/tex] cups of popcorn with [tex]\(1 \frac{1}{2}\)[/tex] tablespoons of kernels. First, let's convert those mixed numbers into improper fractions:
- [tex]\(2 \frac{1}{4}\)[/tex] cups is equivalent to [tex]\(\frac{9}{4}\)[/tex] cups.
- [tex]\(1 \frac{1}{2}\)[/tex] tablespoons is equivalent to [tex]\(\frac{3}{2}\)[/tex] tablespoons.

2. Calculate the Unit Rate:
Now we find out how many tablespoons of kernels are used per cup of popcorn by dividing the amount of kernels by the amount of popcorn:
[tex]\[
\text{Kernels per cup} = \frac{\frac{3}{2}}{\frac{9}{4}} = \frac{3}{2} \times \frac{4}{9} = \frac{12}{18} = \frac{2}{3}
\][/tex]
So, Serena uses [tex]\(\frac{2}{3}\)[/tex] tablespoon(s) of kernels per cup of popcorn.

3. Find the Amount of Kernels Needed for 6 Cups:
To find out how many tablespoons are needed for 6 cups of popcorn, multiply the unit rate by 6:
[tex]\[
\text{Kernels needed} = \frac{2}{3} \times 6 = 4
\][/tex]
Therefore, Serena needs 4 tablespoons of kernels to make 6 cups of popcorn.

By following these steps, it's determined that Serena needs 4 tablespoons of kernels to make 6 cups of popcorn.

Thanks for taking the time to read Practice Unit Rates for Ratios with Fractions Level G Serena makes tex 2 frac 1 4 tex cups of popcorn using tex 1 frac 1. We hope the insights shared have been valuable and enhanced your understanding of the topic. Don�t hesitate to browse our website for more informative and engaging content!

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