Understanding Ratios and Percentages

The video tutorial introduces the concept of ratios, explaining how they compare two quantities of the same kind by division. It provides examples using kites and balloons, puppies and dogs, and a story problem involving cows and hens. The tutorial also covers how to express ratios as percentages, emphasizing the importance of reducing ratios to their simplest form.

What is a ratio primarily used for?

• To compare two quantities of the same kind by division

• To add two quantities

• To subtract one quantity from another

• To multiply two quantities

In the ratio 5:7, what does the number 5 represent?

• The total of both terms

• The second term

• The difference between the terms

• The first term

What is the ratio of balloons to kites if the ratio of kites to balloons is 5:7?

• 5:7

• 7:5

• 1:1

• 2:3

How can the ratio of 13 puppies to 4 dogs be expressed?

• 4:13, 4/13, 13 to 4

• 4:13, 13-4, 13/4

• 13:4, 13/4, 4:13

• 13:4, 13/4, 13 to 4

Which of the following is NOT a way to express the ratio of 13 puppies to 4 dogs?

• 13 to 4

• 4:13

• 13/4

• 13:4

What is the simplified ratio of 18 hens to 10 cows?

• 9:5

• 18:10

• 5:9

• 10:18

If there are 10 cows and 18 hens, what is the ratio of cows to the total number of animals?

• 9:5

• 5:14

• 5:9

• 10:28

What is the simplified form of the ratio 18:28?

• 18:28

• 14:9

• 28:18

• 9:14

How do you express the ratio 35:100 as a percentage?

• 35%

• 50%

• 100%

• 70%

How is the ratio 15:100 expressed as a percentage?

• 85%

• 50%

• 100%

• 15%