Proportional Relationships

Hannah reads at a constant rat of 3 pages every 8 minutes. Pick an equation that shows the relationship between p, the number of pages she reads, and m, the number of minutes she spends reading.

• p=3/8 m

• p=2 m

• p=4/10 m

• p=3/5 m

At East Middle School, there are 58 left-handed students and 609 right-handed students. The numbers of left- and right-handed students at West Junior High are proportional to the numbers at East Middle School.

Which of the following could be the numbers of left-handed and right-handed students at West Junior High?

• Left-Handed 42

  Right-Handed 483

• Left-Handed 28

  Right-Handed 378

• Left-Handed 48

  Right-Handed 504

• Left-Handed 56

  Right-Handed 560

• Left-Handed 30

  Right-Handed 315

Tags

CCSS.7.RP.A.2A

A museum requires a minimum number of chaperones proportional to the number of students on a field trip. The museum requires a minimum of 3 chaperones for a field trip with 24 students.

Which of the following could be combinations of values for the students and the minimum number of chaperones the museum requires?

Choose 2 answers:

• Students: 72

  Minimum number of chaperones: 9

• Students: 16

  Minimum number of chaperones: 2

• Students: 60

  Minimum number of chaperones: 6

• Students: 45

  Minimum number of chaperones: 5

• Students: 40

  Minimum number of chaperones: 8

Tags

CCSS.7.RP.A.2A

Scarlett ia playing a video game. SHe spends 900 minerals to create 18 workers. Each worker cost the same amount of minerals.

How much does 1 worker cost?

• 70

• 2

• 50

• 37

Tags

CCSS.3.OA.A.3

The green goobe, a wildly unpopulr super hero, mixes 3 liters of yellow paint with 5 liters of blue paint to make 8 liters of special green paint for his costume.

Which equation relates y, the amount of yellow paint in liters, and b, the amount of blue paint in liters, needed to make the Green Goober's special green paint.

• y=0.6 b

• y=4 b

• y=18.2 b

• y=3.6 b

Wangari plants trees at a constant rate of 12 trees every 3 hours.

Which equation relates p, the number of trees Wangari plants, and h, the time she spends planting them in hours.

• p=6h

• p=8h

• p=4h

• p=2h

Tags

CCSS.6.RP.A.3B