Rates and proportional relationships

Mountain Middle school enrolled 200 girls and 150 boys. Of the girls, 75 have blue eyes, 55 have green eyes, and 70 have brown eyes. Of the boys, 60 have blue eyes, 45 have green eyes, and 45 have brown eyes. What is the ratio of boys with green eyes to girls with blue eyes?

• 45:75

• 55:60

• 75:45

• 60:55

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

The baseball team had 18 players. There were 4 coaches on the team. What is the ratio of players to coaches?

• 18 to 4

• 22 to 18

• 18 to 22

• 4 to 18

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

A recipe calls for 5 1/2 cups of sugar and makes 12 servings. How many cups of sugar are needed for 16 servings?

• 7 1/3

• 8 2/3

• 9 1/2

• 9 2/3

Tags

CCSS.7.RP.A.1

Steve swam 20 laps in 35 minutes. Sue swam 27 laps in 48 minutes. Are these rates the same?

• Yes, the rates are the same

• No, Steve's rates per hour is greater than Sue's

• No, Sue's rate per hour is greater than Steve's

• Ham sandwich

Tags

CCSS.6.RP.A.3B

Pedro can buy an 18-ounce bottle of ketchup for $2.39 or a 24-ounce bottle for $3.39. Which bottle is the best buy and what is the unit rate?

• $2.39 bottle; 13 cents

• $3.39 bottle; 14 cents

• $2.39 bottle; $7.53

• $3.39 bottle; $7.08

Tags

CCSS.6.RP.A.3B

Shawn works as a mechanic and worked 18 hours last week, earning $391.50. At that rate, how much will he earn if he works for 25 hours?

• $508.50

• $528.25

• $543.75

• $560.25

Tags

CCSS.6.RP.A.3B

Using the formula y = kx, if y = 32 and k = 8, what is the value of x?

• 256

• 40

• 24

• 4

Tags

CCSS.7.RP.A.2C

Identify the constant of proportionality.

• k = 2

• k = 3

• k = 1.50

• k = 2/3

• none (not proportional)

Tags

CCSS.7.RP.A.2B

What is the equation?

• y = 0.25x

• y = 4x

• y = x + 4

• y = x - 4

Tags

CCSS.5.OA.B.3

Which table shows a proportional relationship between x and y ?

• 
• 
• 
• 

Tags

CCSS.7.RP.A.2A