RCJH Proportional Relationship Review RLA

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:b'.

Front

How do you find the unit price?

Back

To find the unit price, divide the total price by the number of items. For example, if 3 apples cost $1.50, the unit price is $1.50 ÷ 3 = $0.50 per apple.

Front

What is the ratio of width to length in a rectangle with a width of 10 cm and a length of 15 cm?

Back

The ratio of width to length is 10:15, which simplifies to 2:3.

Front

If a recipe requires 4 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 4:2, which simplifies to 2:1.

Front

What is the average speed if a car travels 240 miles in 4 hours?

Back

The average speed is calculated by dividing the distance by time: 240 miles ÷ 4 hours = 60 mph.

Front

What does it mean if two quantities are proportional?

Back

Two quantities are proportional if they maintain a constant ratio or relationship to each other.

Front

How can 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 (GCD).

Front

What is the unit price of 5 pounds of apples sold for $10?

Back

The unit price is $10 ÷ 5 pounds = $2 per pound.

Front

If a store sells 3 apples for $1.50, what is the cost of 1 apple?

Back

The cost of 1 apple is $1.50 ÷ 3 = $0.50.

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.