5-1 Understand Ratios

Multiple Choice

What is a Ratio?

• Is a comparison of two quantities 
• A rate with a denominator of one
• It is when the only factor the numerator and denominator share is a one 
• Two decimals that can be multiplied

Multiple Select

Select the other two ways to write the ratio $$\frac{2}{3}$$  

• 2 : 3 

• 3 to 2 

• 3 : 2 

• 2 to 3 

Multiple Choice

How do you write the ratio of the number of cats to the total number of pets using the information from the first two slides

• 14:17

• 14:31

• 17:14

• 31:14

Multiple Choice

Is the ratio of dogs to cats the same as the ratio of cats to dogs? Explain.

• No, the ratios are not the same.
• Yes, they are the same ratio.
• It depends on the number of pets owned.
• The ratios are equal in all cases.

Multiple Select

Select all three ways to write the ratio of the number of dogs to the total number of pets?

• 17 and 28

• 17 to 28

• 17 : 28

• 17/28

Multiple Choice

What is the ratio of triangles to squares?

• 2:6
• 5:6
• 3:4
• 4:3

Multiple Choice

Ella has 5 balloons. Taylor has 7 balloons. Write the ratio of Ella's balloons to Taylor's balloons.

• 7:5
• 5:7
• 3:5
• 5:3

Multiple Choice

If the store has 30 footballs in stock and the ratio of footballs to soccer balls is 5:3, how many soccer balls does the store have?

• 60

• 20

• 100

• 18

Multiple Choice

In a bag of Jolly Ranchers, the ratio of blue to red is 3 to 4. If I have a 15 blue jolly ranchers, how many are represented in the entire tape diagram?

• 20

• 105

• 7

• 35

Multiple Choice

If 30 kids in the class like grape juice, how many kids like pineapple juice?  Use the tape diagrams to answer.

• 4
• 30
• 70
• 40

Multiple Choice

Refer to the double number line:

If you makes 6 loaves of bread, how many cups of raisins did she use?

• 3

• 9

• 12

• 6

Multiple Choice

The double number line shows that a water park allows 18 people to go down their giant water slide in 3 minutes. How long would it take 12 people to go down the slide?

• 1 minute

• 2 minutes

• 3 minutes

• No way to find out.

Poll

How do you feel about this lesson on understanding ratios