Ch8 Proportional Reasoning

A 2 L carton of milk costs $3.26. What is the unit rate?

• $0.83/500 mL

• $3.27/2 L

• $0.61/L

• $1.63/L

On vacation, Juan drove 275 miles in 5 hours. Predict how far Juan will travel at the same rate in the next 3 hours.

• 440
• 195
• 165
• 55

Tags

CCSS.6.RP.A.3B

Maureen ran 15 km in 1.25 h. What is her running speed?

• 12 km/h

• 15 km/h

• 120 m/min

• 200 m/s

Mrs. Cimmerer fills her car up with gas at a rate of 2 gallons in 30 seconds. How many gallons will she have in her car after 3.5 minutes?

• 7 gallons
• 105 gallons
• 14 gallons
• 52.5 gallons

Tags

CCSS.6.RP.A.3B

The graph shows how a cyclist travels over time.

Over which interval is the cyclist travelling at 4.5 km/h?

• AB

• BC

• CD

• FG

The graph shows how a cyclist travels over time.

Over which interval is the cyclist travelling the fastest?

• AB

• BC

• EF

• FG

Data for circle O is shown on the first line of the table.

Circle O is enlarged by a scale factor of 600%. Which circle is the enlargement of circle O?

• P

• Q

• R

• S

Data for triangle ABC is shown on the first line of the table.

Triangle ABC is reduced so the height is 1.5 cm.

Which triangle is the reduction of triangle ABC?

• DEF

• GHI

• JKL

• MNO

A lacrosse ball has a diameter of 6.4 cm. A basketball has a diameter of about 23 cm. By what percent is the surface area of a basketball greater than the surface area of a lacrosse ball?

• 359%

• 1291%

• 1661%

• 4641%

The ratio of the volume of two spheres is 8:27. What is the ratio of their radii?

• 2:3

• 4:9

• 3:4

• 64:729

Tags

CCSS.7.RP.A.3