Proportions - Real world problems

Front

What is a proportion?

Back

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

Front

How do you solve a proportion?

Back

To solve a proportion, cross-multiply the two ratios and set the products equal to each other.

Front

What is the formula for finding a unit rate?

Back

The unit rate is found by dividing the quantity by the number of units, expressed as 'quantity per unit'.

Front

If 3 apples cost $1.50, what is the cost of 1 apple?

Back

$0.50 per apple.

Front

What is the relationship between ratios and proportions?

Back

Ratios compare two quantities, while proportions show that two ratios are equivalent.

Front

How can proportions be used in real-world problems?

Back

Proportions can be used to solve problems involving scaling, such as recipes, distances, and rates.

Front

If a car travels 60 miles in 1 hour, how far will it travel in 3 hours?

Back

180 miles.

Front

What is the concept of scaling in proportions?

Back

Scaling involves increasing or decreasing a quantity while maintaining the same ratio.

Front

If 4 pencils cost $2, how much do 10 pencils cost?

Back

$5.

Front

What is a rate?

Back

A rate is a specific kind of ratio that compares two different kinds of quantities.