COP Test- review before retest

Watermelon is sold at a local farmer's market. The price of a watermelon is $0.60 per pound. For watermelons that weight over 8 pounds, the seller offers a discount. The first 8 pounds still cost $0.60 a pound, but every pound over 8 pounds costs $0.40 a pound. Which of these statements is correct?

• The weight and cost of watermelon is proportional for all weights.

• The weight and cost of watermelon is not proportional for any weights.

• The weight and cost of watermelon is proportional for watermelons that weight 8 pounds or less.

• The weight and cost of watermelon is proportional for watermelons that weigh more than 8 pounds.

Tags

CCSS.7.RP.A.2A

Dante bought 15 pounds of metal for $36. Which purchase would have the same cost per pound as Dante's purchase?

• 5 pounds of metal for $12

• 6 pounds of metal for $15

• 8 pounds of metal for $18

• 9 pounds of metal for $21

Tags

CCSS.6.RP.A.3B

Dogs and humans age at different rates. The table above shows the relationship between a dog's age and the comparable human age.

Is the relationship between dog ages and human ages a proportional relationship?

• Yes, because both lists increase in value

• No, because 1:15 is not the same ratio as 2:24

• Yes, because the graph of this relationship would go through the origin.

• No, because the human ages are multiples of 4.

Tags

CCSS.7.RP.A.2A

Belinda recorded the miles she drove and the number of gallons of gasoline she used in the table.

How many miles can Belinda drive on one gallon of gasoline?

• 43.0

• 32.5

• 21.5

Tags

CCSS.6.RP.A.3B

A recipe requires x number of cups of flour to produce y number of servings. 

Using the table, what is the number of servings per cup of flour?

• $6\ \frac{1}{2\ }$

• $7$

• $8$

• $8\ \frac{1}{2}$

Tags

CCSS.6.RP.A.3B

Two dozen flowers cost $18.96, and four dozen flowers cost $37.92. What is the cost for one flower?

• $18.96

• $9.48

• $0.95

• $0.79

Tags

CCSS.6.RP.A.3B

What is the constant of proportionality for the line on the graph?

• 
  

  $\frac{3}{2}$
  

• $\frac{2}{3}$

• $-\frac{2}{3}$

• $-\frac{3}{2}$

Tags

CCSS.7.RP.A.2D

The graph shows the cost of tickets to an amusement park.

According to the graph, what would be the cost of one ticket?

• $25

• $35

• $50

• $60

Tags

CCSS.7.RP.A.2D

Jackie's salary is proportional to the number of hours she works. Knowing that she made $49 in 7 hours, which graph best models the relationship between the number of hours Jackie works and her salary?

• 
• 
• 
• 

Tags

CCSS.7.RP.A.2D

Mike earned the amounts listed in the table below.

Which equation could be used to find the amount of money Mike earns, E, for any number of hours worked, h?

• E = 18.75 + h

• E = 12.25 + h

• E = 18.75h

• E = 12.25h

Tags

CCSS.5.OA.B.3