Proportionality and Percentages

Calculate the unknown term in this case:

• 50

• 18

• 25

• 40

Indicate if the pair of quantities are directly proportional or inversely proportional:

<The time of a vacuum cleaner is used and the amount of energy it uses>.

• DIRECTLY PROPORTIONAL

• INVERSELY PROPORTIONAL

Calculate and round off into units if the result is not exact:

15% of 350 & 7% of 3640

• 53 and 255

• 52 and 254

• 56 and 256

• 54 and 254

A healt report indicates that 33.8 % of the population has had flu this year. What percentages of the population has not had flu this year?

• 66.2 %

• 66 %

• 64%

• 62%

• A
• B
• C
• D

The graph shows how the number of pages Jeff reads is related to the number of hours he spends reading. If Jeff continues to read at the same rate as shown in the graph, how many hours would it take him to read 90 pages?

Mathematical Equivalence

ON

A movie theater randomly samples the types of admission tickets sold on Friday in the afternoon and the evening. If 400 tickets are sold on a Friday afternoon, use your inference and proportional reasoning skills to determine how many of those 400 tickets would be adult tickets. Type your numerical answer only.

Tags

CCSS.Math.Content.7.RP.A.3

The graph shows how the number of pages Jeff reads is related to the number of hours he spends reading.

If Jeff continues to read at the same rate as shown in the graph, how many hours would it take him to read 90 pages?

Mathematical Equivalence

ON

If Jeff continues to read at the same rate as shown in the graph, how many hours would it take him to read 90 pages?

Mathematical Equivalence

ON

A family buys a refrigerator that costs $640. They pay the 40% ins cash and the remainder in 6 instalments without any additional charges. How much is each instalments?

• 384

• 64

• 256

• None of the above