IXL | Use tape diagrams to solve ratio word problems

Read the story.

Trevor made a batch of salad dressing. He used 3 times as much oil as vinegar.

Pick the diagram that models the ratio in the story.

oil

vinegar

oil

vinegar

If Trevor used 9 tablespoons of oil, how many tablespoons of vinegar did he use?

tablespoons

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Learn with an example

question

Read the story.

The Culver City Carnival had a face-painting booth. There were 8 times as many kids as adults who had their faces painted.

Pick the diagram that models the ratio in the story.

kids

adults

kids

adults

If 56 kids had their faces painted, how many people had their faces painted altogether?

people

solution

In the story, there were 8 kids who had their faces painted for every 1 adult.

This diagram models the ratio in the story. There are 8 boxes for kids and 1 box for adults.

kids

adults

You know that 56 kids had their faces painted. Use the model to help you find how many people had their faces painted altogether.

kids

adults

Start by finding how many people each box in the diagram represents. There were 56 kids who had their faces painted, and there are 8 boxes for kids. So, divide 56 by 8.

Each box in the diagram represents 7 people.

kids

adults

There are 9 boxes in the diagram in all. So, multiply to find how many people had their faces painted altogether.

A total of 63 people had their faces painted.

Looking for more? Try these:

Lesson: Ratios

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Teacher tools

Work it out

Not feeling ready yet? These can help:

S.5Write a ratio: word problems

S.6Which model represents the ratio?

Lesson: Ratios

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