Unit 8 Flashcard Review Proportions and Ratios

Front

What is a Ratio?

Back

Is a comparison of two quantities.

Front

How can the ratio 5:15 be expressed?

Back

Front

Is 2:6 equivalent to 10:30?

Back

Yes.

Front

Solve the proportion: 2/5 = x/15. What is x?

Back

x = 6.

Front

What is a proportion?

Back

An equation that states two ratios are equal.

Front

If a:b = 3:4, what is the value of a if b = 8?

Back

a = 6.

Front

What does it mean for two ratios to be equivalent?

Back

They represent the same relationship between quantities.

Front

Solve for k in the proportion: 4/k = 2/8.

Back

k = 16.

Front

What is the simplest form of the ratio 10:25?

Back

2:5.

Front

If the ratio of cats to dogs is 3:2 and there are 12 cats, how many dogs are there?

Back

8 dogs.