7.RP.2a Checkpoint Review

In a certain apartment building, the ratio of tenants to cars is 3:5. If there are 30 tenants, how many cars are there?

• 35

• 60

• 50

• 18

Which is NOT equivalent to 3:5?

• 15:25

• 21:28

• 9:15

• 30:50

Use the following ratio table to determine how many pencils will be in 8 boxes

• 20 pencils

• 24 pencils

• 96 pencils

• 48 pencils

Proportional or not proportional?

• Proportional

• Not Proportional

Which of the following graphs does NOT represent a proportional relationship?

• 
• 
• 
• 

Proportional or not proportional?

• Proportional

• Not proportional

Which table shows a proportional relationship between x and y?

• 
• 
• 
• 

A survey was given to twenty-five students about lunch choices. Five of the students preferred to eat pizza during lunch time. The same survey was given to students in a different state. This time they asked forty students. Eight of those students preferred to eat pizza during lunch time. If this pattern continues, how many students out of eighty would prefer to eat pizza at lunch?

• 10

• 12

• 16

• 20

A survey was taken of twenty dentists about Sparkly toothpaste. Sixteen of the dentists recommended Sparkly toothpaste to their patients. The same survey was given to dentists in a different state. This time they asked thirty dentists. Twenty–four of those dentists recommended Sparkly toothpaste to their patients. If this pattern continues, how many dentists out of fifty would recommend Sparkly toothpaste?

• 10

• 40

• 42

• Not enough information is given to determine

  how many dentists would recommend Sparkly

  toothpaste.

For which company or companies is there a proportional relationship between the number of minutes and the monthly cost?

• Nation Mobile and Cellular Prime

• Mobile Plus Only

• Mobile Plus and Cellular Prime

• Nation Mobile Only