Ratios and Proportional Relationships

The ratio of sixth graders to seventh graders in the science club is 4:7. If there are 20 sixth graders in the club, how many seventh graders are in the club?

• 11

• 28

• 35

• 70

Brian's father sells 12 real estate properties every 8 months. If this trend continues, how many properties will he sell in 34 months?

• 2.82

• 22.6

• 60

• 51

Tags

CCSS.6.RP.A.3B

Mila is asked to make 5 quarts of lemonade. The directions that she reads for how to make lemonade state that she should use 12 lemons to make 3 quarts. How many lemons does she need to make 5 quarts of lemonade?

• 20 lemons

• 18 lemons

• 16 lemons

• 10 lemons

Tags

CCSS.6.RP.A.3B

Mrs. Hart paid $0.36 per ounce for cheese. Which block of cheese did she buy?

• 6 ounces for $1.98

• 8 ounces for $2.88

• 10 ounces for $4.19

• 5 ounces for $2.75

Tags

CCSS.6.RP.A.3B

A machine can fill 50 bottles in 2 minutes. Which equation shows how b, the number of bottles, is related to the time, t, in minutes?

• t=25b

• b=50t

• b=25t

• b=50t+2

Tags

CCSS.6.EE.C.9

Tyler swims 6 laps in 4.5 minutes. What is the rate in minutes per lap?

• 3/4 minute per lap

• 2/3 minute per lap

• 1 1/3 minutes per lap

• 1.5 minutes per lap

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Mr. Aird drove 328.9 miles in 7.75 hours. Which is the best estimate of the distance he drove each hour?

• about 32 miles

• about 50 miles

• about 40 miles

• about 55 miles

Tags

CCSS.5.NBT.B.7

Two pounds of dried apricots cost $5.04, 3 pounds cost $7.56, and 7 pounds cost $17.64. Which equation gives the total cost y of x pounds of dried apricots?

• y=2.52x

• y=3.04x

• y=5.04x

• y=1.68x

Tags

CCSS.6.NS.B.3

Which situation represents a proportional relationship?

• When training, a runner increases his distance by one mile every two days.

• My cousin earns $18 per hour painting homes.

• A music store sells ten additional DVDs each day.

• A shipping company charges $7 plus $0.25 per pound.

Tags

CCSS.7.RP.A.2A

Your sister babysits on the weekends. The equation y=12x represents the amount of money she earns. What is the constant of proportionality?

• 1

• 6

• 24

• 12

Tags

CCSS.7.RP.A.2B