Ratios, Rates and Proportions

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

What is a rate?

Back

A rate is a specific kind of ratio that compares two different units, such as miles per hour or cost per item.

Front

What is a proportion?

Back

A proportion is an equation that states that two ratios are equal, often written as a/b = c/d.

Front

If 5 candy bars cost $3.00, how much will 2 candy bars cost?

Back

$0.60

Front

A local bakery makes 100 batches of cookies in 8 hours. How many batches would they make in 12 hours?

Back

150 batches of cookies

Front

What does it mean if the ratio of total bugs to fireflies is 7 to 3?

Back

It means for every 7 total bugs, there are 3 fireflies, indicating there are more spiders than fireflies.

Front

If I have 4 scary movies, 5 funny movies, 2 romantic movies, and 3 animated movies, what is the ratio of romantic movies to all movies?

Back

1:7

Front

You travel 150 miles on 5 gallons. How far did you travel per gallon?

Back

30 miles per gallon.

Front

How do you find a unit rate?

Back

To find a unit rate, divide the quantity by the number of units, resulting in a value per one unit.

Front

What is the relationship between ratios and fractions?

Back

Ratios can be expressed as fractions, where the first quantity is the numerator and the second quantity is the denominator.