Ratios & Rates

Front

What is a ratio?

Back

A ratio is a relationship between two quantities, showing how many times one value contains or is contained within the other.

Front

How do you write a ratio?

Back

A ratio can be written using the word 'to' (e.g., 3 to 5) or as a fraction (e.g., 3/5) or with a colon (e.g., 3:5).

Front

What is the ratio of red toy cars to all toy cars if there are 3 red cars and 7 other cars?

Back

The ratio is 3:10.

Front

How do you simplify the ratio 25:30?

Back

To simplify the ratio 25:30, divide both numbers by their greatest common divisor, which is 5, resulting in 5:6.

Front

What is the ratio of red apples to green apples if there are 4 red apples and 3 green apples?

Back

The ratio is 4:3.

Front

What is a rate?

Back

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

Front

How do you determine which is the better buy between two products?

Back

To determine the better buy, calculate the unit price for each product and compare them.

Front

If a 12 pack of Coke costs $3.50, what is the cost per can?

Back

The cost per can is $3.50 divided by 12, which is approximately $0.29.

Front

What does it mean to compare ratios?

Back

Comparing ratios involves determining which of two or more ratios is greater or if they are equivalent.

Front

What is the relationship between ratios and fractions?

Back

Ratios can be expressed as fractions, and they represent the same relationship between quantities.