7th Proportional Relationships

Johnny read 280 pages in 4 hours.

How many pages per hour did Johnny read?

• 276

• 14

• 70

• 60

Tags

CCSS.3.OA.D.8

At a baseball stadium, sixteen hot dogs are sold each minute. At this rate how many hot dogs are sold in 30 minutes?

• 260

• 500

• 80

• 480

Tags

CCSS.6.RP.A.3B

Is the graph proportional or non proportional?

• proportional
• non proportional

Tags

CCSS.8.EE.B.5

What is the constant of proportionality?

• 15
• 5
• 75
• 25

Tags

CCSS.HSF-LE.A.1B

What is the unit rate in this proportional relationship?

• 60 miles/1 hour
• 120 miles/ 2 hours
• 1 mile/ 1 hour

Tags

CCSS.7.RP.A.2B

A poll was taken to total the candy collected by a few students who went trick or treating on Halloween. Determine the ratio that compares the number of candy bars to the total pieces of candy.

• 4:5

• 1:6

• 1:8

• 1:4

Approximately 105 out of 350 teens have their own savings account. Express the ratio 105:350 as a fraction in simplest form.

• 3 / 10
• 3 / 1
• 1/3
• 10/3

River Adventures charges $15 to rent a canoe plus $5 per hour. Use the graph below to determine whether the cost of the canoe is proportional to the number of hours it is rented.

• proportional; the graph is a straight line and the rate of change is constant

• not proportional: the graph is a straight line, but does not pass through the origin

• proportional: the graph is a straight line through the origin

• not proportional; the graph is not a straight line

Determine whether the ratios 9/15 and 6/10 form a proportion. Justify your answer.

• No, they are unit rates.
• Yes, they are both percents.
• Yes, their cross products are equal.
• No, their cross products are not equal.

The table shows the weight in pounds of objects on earth compared to objects on the moon.  If an object on earth weighs 42 lbs, what is its weight on the moon?

• 7 lbs
• 12 lbs
• 84 lbs
• 252 lbs

Tags

CCSS.4.MD.A.2