Ratios/rates/Measure

Front

What is a ratio?

Back

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

Front

How do you find the unit rate?

Back

To find the unit rate, divide the total amount by the number of items. For example, if 15 pizzas cost $97.50, the unit rate is $97.50 ÷ 15 = $6.50 per pizza.

Front

Convert 2 miles to yards.

Back

2 miles = 3520 yards.

Front

What is the ratio of birds to total animals if there are 4 birds and 6 snakes?

Back

The ratio of birds to total animals is 4/10.

Front

If 30 kids like grape juice, and the total number of kids is 70, how many kids like pineapple juice?

Back

40 kids like pineapple juice.

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

How do you express a ratio in simplest form?

Back

To express a ratio in simplest form, divide both terms of the ratio by their greatest common divisor.

Front

What is the total number of students if there are 120 boys and 150 girls?

Back

The total number of students is 270.

Front

If a recipe calls for 3 cups of flour for every 2 cups of sugar, what is the ratio of flour to sugar?

Back

The ratio of flour to sugar is 3:2.

Front

What is the unit rate of $45 for 9 items?

Back

The unit rate is $5 per item.