Proportions in Real-World Applications

This video tutorial covers two examples of proportion applications. The first example involves a nurse mixing medications in the correct proportions for patients, demonstrating how to adjust the amount of one medication based on changes in the other. The second example involves mixing a secret coffee blend, showing how to maintain the same proportion when the quantity of one ingredient changes. Both examples illustrate setting up and solving proportions using cross-multiplication.

What is the primary focus of proportion applications in nursing as discussed in the video?

• Mixing medications in correct proportions

• Calculating patient dosages

• Administering vaccines

• Scheduling patient appointments

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

In the first example, what was the initial ratio of Medication A to Medication B?

• 60 to 40

• 60 to 48

• 40 to 60

• 48 to 60

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CCSS.6.RP.A.3B

How many milligrams of Medication A are needed when using 40 milligrams of Medication B?

• 60 milligrams

• 48 milligrams

• 40 milligrams

• 50 milligrams

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CCSS.RI.7.3

CCSS.RI.8.3

CCSS.RI.8.5

CCSS.RI.9-10.3

CCSS.RI.9-10.5

What is the main product discussed in the second example?

• Milk

• Juice

• Coffee

• Tea

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

In the coffee blending example, what was the initial ratio of Organic Coffee to Sun City Coffee?

• 70 to 32

• 32 to 80

• 32 to 70

• 80 to 32

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CCSS.6.RP.A.3B

How many pounds of Sun City Coffee are needed when using 70 pounds of Organic Coffee?

• 28 pounds

• 32 pounds

• 70 pounds

• 80 pounds

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CCSS.4.OA.A.3

What mathematical method is used to solve for the unknown in both examples?

• Subtraction

• Cross multiplication

• Addition

• Division

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CCSS.6.RP.A.3A

What is the purpose of setting up two ratios in the examples?

• To simplify the calculation

• To compare different products

• To maintain the same order of comparison

• To find the total quantity

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CCSS.7.RP.A.3

What is the key takeaway from the two examples discussed?

• Proportions are only used in cooking

• Proportions are not important

• Proportions are useful in various fields

• Proportions are only used in nursing

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CCSS.7.RP.A.3

What is the final step in solving for the unknown in a proportion problem?

• Subtracting both sides

• Dividing both sides

• Adding both sides

• Multiplying both sides

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CCSS.7.RP.A.3