Understand Proportions Period 3/4

Brooke earned $28 for 4 hours babysitting. What is the unit rate?

• $4/hour

• $6/hour

• $7/hour

• $8/hour

3:4 is equivalent to:

• 6:8

• 4:3

• 1:2

• 12:14

Solve the proportion below:

• 42
• 6
• 2
• 28

Tags

CCSS.7.RP.A.2B

Determine whether the ratios  $\frac{7}{12}$   and  $\frac{14}{25}$   form a proportion and justify your answer. 

• No, they are unit rates.

• No, their cross products are not equal.

• Yes, their cross products are equal.

• Yes, they are both ratios.

Mrs. Sparks has been craving smoothies lately. She buys a 18oz chocolate smoothie for $6. Mrs. Jones also buys a 15oz chocolate smoothie. How much is Mrs. Jones smoothie?

• $4.50

• $5.00

• $5.75

• $7.25

Which of the following statements is NOT true about the given data on the table?

• The number of baseballs is proportional to the number of footballs.

• The number of footballs increases by 2 and the number of baseballs increases by 5.

• The ratio of baseballs to footballs is 5:2.

• The constant of proportionality is 2/5.

Choose which of the following statements is correct

• y is proportional to x in all the 3 tables because they each maintain a common ratio

• y is proportional to x in table 1 but not in table 3.

• y is proportional to x in table 1 and 3 and their constants of proportionality are 4 and 2/3 respectively.

• y is not proportional x in any of the tables because they all have different ratios.

Find the Unit Rate of rotations per minute.
405 rotations in 5 minutes   

• 81 rotations per minute
• 73 rotations per minute
• 18 rotations per minute
• 810 rotations in 10 minutes

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

At HEB 3 pounds of hamburger meat is on sale for $6. If Alicia buys 10 pounds of hamburger, how much will she pay?

• $30
• $20
• $60
• $10

Tags

CCSS.6.RP.A.3B

Do the ratios form a proportion?

• Yes, they form a proportion.
• No, they do not form a proportion.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.3