Proportions - Real world problems

Front

What is a proportion?

Back

A proportion is an equation that states that two ratios are equal.

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CCSS.7.RP.A.2A

Front

How do you solve a proportion?

Back

To solve a proportion, cross-multiply the two ratios and set the products equal to each other.

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CCSS.7.RP.A.3

Front

What is the formula for finding a unit rate?

Back

The unit rate is found by dividing the quantity by the number of units, expressed as 'quantity per unit'.

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

If 3 apples cost $1.50, what is the cost of 1 apple?

Back

$0.50 per apple.

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

What is the relationship between ratios and proportions?

Back

Ratios compare two quantities, while proportions show that two ratios are equivalent.

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CCSS.6.RP.A.3A

Front

How can proportions be used in real-world problems?

Back

Proportions can be used to solve problems involving scaling, such as recipes, distances, and rates.

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CCSS.7.RP.A.3

Front

If a car travels 60 miles in 1 hour, how far will it travel in 3 hours?

Back

180 miles.

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CCSS.6.RP.A.3B

Front

What is the concept of scaling in proportions?

Back

Scaling involves increasing or decreasing a quantity while maintaining the same ratio.

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CCSS.7.RP.A.2A

Front

If 4 pencils cost $2, how much do 10 pencils cost?

Back

$5.

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CCSS.6.RP.A.3B

Front

What is a rate?

Back

A rate is a specific kind of ratio that compares two different kinds of quantities.

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CCSS.6.RP.A.1

CCSS.6.RP.A.2