Solving Proportions - Purple

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 terms and then solve for the unknown variable.

Front

If 4 big water bottles hold 8 gallons, how much does 1 bottle hold?

Back

1 big water bottle holds 2 gallons.

Front

If 50 apples cost $25.00, what is the cost of 1 apple?

Back

1 apple costs $0.50.

Front

What is the formula for finding the cost of a certain number of items?

Back

Cost = (Number of items) x (Cost per item).

Front

If 14 sticks of pepperoni are needed for 28 pizzas, how many sticks are needed for 1 pizza?

Back

1 pizza needs 0.5 sticks of pepperoni.

Front

What is the relationship between the number of pizzas and the number of sticks of pepperoni?

Back

The relationship is a direct proportion.

Front

How do you set up a proportion for the problem: 50 apples cost $25.00, how much for 75 apples?

Back

Front

What does it mean if two ratios are equivalent?

Back

It means that they represent the same relationship or value.

Front

Back