Solving Proportions - Red

Front

What is a proportion?

Back

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

Front

How do you set up a proportion?

Back

Front

If 5 ice cream cones are sold for every 3 brownies, what is the ratio of ice cream cones to brownies?

Back

The ratio of ice cream cones to brownies is 5:3.

Front

How many ice cream cones are sold if 24 brownies are sold?

Back

If 24 brownies are sold, then 40 ice cream cones are sold.

Front

Back

The first step is to cross-multiply: 6 * x = 45 * 10.

Front

Back

Front

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

Back

1 big water bottle holds 2 gallons.

Front

How many gallons can 3 big water bottles hold?

Back

3 big water bottles can hold 6 gallons.

Front

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

Back

The relationship is a direct proportion: more pizzas require more sticks of pepperoni.

Front

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

Back

18 sticks of pepperoni are needed for 36 pizzas.