Proportions Ch. 5

A train has a boxcar that is 30 feet long. A model of the train has a boxcar that is 8 inches long. Approximately, what is the scale of the model?  

• 2 inches = 8 feet
• 10 inches = 7 feet
• 8 inches = 1 foot
• 7 inches = 8 feet

Tags

CCSS.7.RP.A.2C

A six-pack of soda costs $2.49, a 12-pack of soda costs $3.99, and a 24-pack of soda costs $5.49. Which pack has the lowest cost per unit?

• 12-pack 
• 24-pack
• 6-pack

Tags

CCSS.6.RP.A.3B

During a recent weekend, a group entered a hot dog eating contest. They ate 35 hotdogs during the contest. The 35 hot dogs was 25% of the total hot dogs eaten during the contest. How many hot dogs were eaten by everyone?                     

• 875
• 72
• 140
• 500

Tags

CCSS.6.RP.A.3C

Trent is planting flowers in flowerbeds at his school. If it takes 12 plants for 3 flowerbeds, how many plants will be needed for 15 flowerbeds?

• 60
• 4
• 36
• 90

Tags

CCSS.6.RP.A.3B

1.  Ava hiked a 4 1/2 -mile trail in 2 1/4 hours. What was her average speed in miles per hour?

• 8
• 2 1/4
• 2 1/2
• 2

Tags

CCSS.7.RP.A.1

There are 12 boys and 10 girls in Mr. Johnson’s class. If 6 more boys join the class, how many girls must be added to the class in order for the ratio of boys to girls to stay the same?     

• 5 girls must be added to the class creating a ratio of 18 to 15
• 6 girls must be added to the class creating a ratio of 18 to 16
• 15 girls must be added to the class and the ratio would stay the same
• 16 girls must be added to the class and the ratio would stay the same

Paula can make 72 cookies with 3 cups of sugar.  How many cookies can Paula make with 9 cups of sugar?  

•  648
• 216
• 1,944
• 27

Tags

CCSS.6.RP.A.3B

If Carly runs 6 laps in 14 minutes, what is her unit rate of minutes per lap? (rounded to the nearest hundredths). 

• .43
• 2.33
• .84
• 4.67

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Quad is 5 feet tall. His shadow is 8 feet tall. How tall is the Junior High building if it's shadow is 42 feet tall? 

• 67.2 feet
• 26.25 feet
• 82 feet
• 68.8 feet

Tags

CCSS.7.RP.A.3

On a class field trip, there are 18 chaperones and 108 students. Of the total 120 people on the trip, what percent of them are NOT chaperones? 

• 85%
• 20%
• 15%
• 75%