Rates, Unit Rates, Proportions

Rates, Unit Rates, Proportions

Assessment

Flashcard

Mathematics

6th - 8th Grade

Hard

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15 questions

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1.

FLASHCARD QUESTION

Front

What is a rate?

Back

A rate is a ratio that compares two different quantities, usually with different units, such as speed (miles per hour) or price (dollars per pound).

2.

FLASHCARD QUESTION

Front

What is a unit rate?

Back

A unit rate is a rate in which the second quantity is one unit. For example, if a car travels 60 miles in 1 hour, the unit rate is 60 miles per hour.

3.

FLASHCARD QUESTION

Front

How do you find the unit rate from a given rate?

Back

To find the unit rate, divide the first quantity by the second quantity. For example, if a recipe calls for 4 cups of flour for 2 cakes, the unit rate is 2 cups of flour per cake.

4.

FLASHCARD QUESTION

Front

What is a proportion?

Back

A proportion is an equation that states that two ratios are equal. For example, if 1/2 = 2/4, then these two ratios are in proportion.

5.

FLASHCARD QUESTION

Front

How can you solve a proportion?

Back

To solve a proportion, you can cross-multiply and then divide. For example, if a/b = c/d, then ad = bc.

6.

FLASHCARD QUESTION

Front

If 3 pounds of hamburger meat cost $6, how much does 1 pound cost?

Back

$2 per pound.

7.

FLASHCARD QUESTION

Front

If a car travels 150 miles in 3 hours, what is the unit rate of speed?

Back

50 miles per hour.

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