Ratio Tables 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 proportion?

Back

A proportion is an equation that states that two ratios are equal.

Front

How do you find a missing value in a proportion?

Back

To find a missing value in a proportion, you can cross-multiply and solve for the unknown.

Front

What does a ratio table represent?

Back

A ratio table is a tool used to organize pairs of numbers that have a constant ratio, helping to visualize relationships between quantities.

Front

If 6 cm on a map represents 15 km, how do you find the actual distance for 1 cm?

Back

Divide the actual distance (15 km) by the map distance (6 cm) to find the scale: 15 km / 6 cm = 2.5 km/cm.

Front

How many miles does a car travel in 20 minutes if it travels 50 miles in 40 minutes?

Back

The car travels 25 miles in 20 minutes, as it covers half the distance in half the time.

Front

What is the scale factor in a ratio?

Back

The scale factor is the number that you multiply or divide by to convert one ratio to another.

Front

How do you set up a ratio table?

Back

To set up a ratio table, list the quantities in columns, ensuring that each pair maintains the same ratio.

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.

Front

If 14 sticks of pepperoni are needed for 28 pizzas, how many are needed for 36 pizzas?

Back

18 sticks of pepperoni are needed for 36 pizzas, calculated using the ratio 14/28 = x/36.