Exploring Equivalent Ratios

The video tutorial explains how to find equivalent ratios by multiplying or dividing both terms of a ratio by the same number. It demonstrates this concept using a ratio table with examples such as the ratio of boys to girls in a class, a juice mixture at Julia's Juice Bar, and the relationship between the number of donuts and their cost. The tutorial also covers how to find missing values in partially filled ratio tables by using known values and simplifying ratios.

What operation can be used to find equivalent ratios?

• Addition

• None of the above

• Subtraction

• Multiplication or Division

If the ratio of boys to girls is 3:5, what is the ratio if both numbers are multiplied by 4?

• 12:15

• 15:25

• 12:20

• 15:20

What is the result of multiplying the terms of the ratio 3:5 by 5?

• 15:20

• 10:15

• 8:10

• 15:25

If the ratio of boys to girls is 3:5, what is the ratio when both numbers are multiplied by 2?

• 5:8

• 6:10

• 6:8

• 5:10

In Julia's juice bar, what is the ratio of apple juice to cranberry juice after multiplying the original parts by 3?

• 15:6

• 15:4

• 10:6

• 10:4

What is the equivalent ratio of 5 parts apple juice to 2 parts cranberry juice when multiplied by 5?

• 15:6

• 20:8

• 10:25

• 25:10

How many cups of water are needed for 6 cups of flour?

• 3 cups

• 6 cups

• 9 cups

• 12 cups

If 2 cups of flour correspond to 3 cups of water, how many cups of water are needed for 10 cups of flour?

• 10 cups

• 20 cups

• 15 cups

• 5 cups

What is the cost of 36 donuts if 4 donuts cost $1?

• $12

• $9

• $36

• $4

How much would 48 donuts cost if the rate is 4 donuts per dollar?

• $12

• $10

• $15

• $20