Solving Proportions Word 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 unit rate?

Back

The unit rate is a comparison of two different quantities when they are combined together, expressed as a quantity per one unit.

Front

If 3 pounds of hamburger meat costs $6, what is the cost per pound?

Back

The cost per pound is $2.

Front

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

Back

1 stick of pepperoni is needed for 2 pizzas.

Front

How do you find the total number of students who like a certain food based on a survey?

Back

Use the ratio of students who like the food to the total surveyed and multiply by the new total.

Front

If 50 students were surveyed and 30 liked pizza, what fraction of students liked pizza?

Back

The fraction is 30/50 or simplified to 3/5.

Front

If Mike takes 18 minutes to read 4 pages, how long does it take him to read 1 page?

Back

It takes Mike 4.5 minutes to read 1 page.

Front

If Mike reads 30 pages at the same pace, how long will it take him?

Back

It will take him 135 minutes to read 30 pages.

Front

What is the formula to find speed?

Back

Speed = Distance / Time.