(6thG) 18 Ratios and Rates

Multiple Choice

What is the ratio of red apples to green apples

• 7 apples to 3 green
• 4 red apples to 7 apples
• 4 red apples to 3 green apples
• 3 green apples to 4 red apples

Ratios

• You always write ratios the way it is stated.

• For example: What is the ratio of snow-cones to chocolate? - So you would write it snow-cones : chocolate

Multiple Select

What are the 3 ways you can write a ratio?

• fraction

• colon

• the word "to"

• part-to-part

Multiple Choice

7 girls to 5 boys

• part-to-part

• part-to-whole

• whole-to-part

Multiple Choice

7 girls to all the students in the class

• part-to-part

• part-to-whole

• whole-to-part

Multiple Choice

Which of the following ratios is NOT equivalent to the other three?

• 21 to 28

• 30 : 40

• $$\frac{15}{20}$$  

• $$\frac{9}{36}$$  

Equivalent Ratios

• equivalent ratios work like fractions, whatever you do to the top (numerator), you have to do to the bottom (denominator

Multiple Choice

1:2 is equivalent to 2:4

• yes, the top and bottom were both multiplied by 2

• no

Math Response

Solve for X $$\frac{4}{7}=\frac{20}{x}$$  

Type answer here

Correct Answer: 35

Deg^°

Rad

Multiple Choice

4:7 is equivalent to 8:_

• 7

• 32

• 14

Match

Match the following ratios:

• 7:4

• 3:7

• 2:6

• 8:3

• 5:4

21:12

9:21

24:72

24:9

20:16

• 21:12

• 9:21

• 24:72

• 24:9

• 20:16

Multiple Choice

What number is missing?

• 12
• 3
• 11
• 13

Multiple Choice

To make coffee, one small scoop of coffee grounds is added to 2 cups of water. Use the ratio table to find how many cups of water to use for 5 scoops of coffee.

• 4

• 6

• 10

• 8

Multiple Choice

Complete the ratio table.

• 2

• 4

• 0

• 1