Review - Ratios Flashcard

Front

What is a ratio?

Back

A ratio is a comparison of two quantities that shows the relative size of one quantity to another, often expressed as 'a to b' or a:b.

Front

How do you simplify a ratio?

Back

To simplify a ratio, divide both terms of the ratio by their greatest common divisor (GCD).

Front

What is the unit rate?

Back

The unit rate is a ratio that compares a quantity to one unit of another quantity, often expressed as 'x per 1 unit'.

Front

If there are 4 trucks for every 5 cars, what is the ratio of trucks to cars?

Back

The ratio of trucks to cars is 4:5.

Front

How do you find the total number of items in a ratio?

Back

To find the total number of items in a ratio, add the parts of the ratio together and multiply by a common factor.

Front

What does it mean to write a ratio in simplest form?

Back

Writing a ratio in simplest form means reducing it to the smallest whole numbers that maintain the same relationship.

Front

If Kaleigh buys 3 apps for $9, what is the cost of 1 app?

Back

The cost of 1 app is $3.

Front

What is the meaning of 'rate of change'?

Back

Rate of change refers to how much one quantity changes in relation to another quantity, often expressed as a ratio.

Front

How do you express a ratio as a fraction?

Back

A ratio can be expressed as a fraction by placing the first quantity over the second quantity.

Front

What is the ratio of boys to girls if there are 6 boys for every 3 girls?

Back

The ratio of boys to girls is 2:1.