Cost and Proportionality Problems

The video tutorial covers lesson seven's problem set, focusing on finding constants of proportionality in various scenarios. It includes calculating the cost of bananas per pound, analyzing dry cleaning costs, exploring savings and parental contributions, and evaluating the cost of student trips to the zoo. Each section involves deriving equations to represent the situations and understanding the variables involved.

If bananas cost 59 cents per pound, how much would 10 pounds cost?

• $5.00

• $6.50

• $5.90

• $6.00

What is the equation representing the cost of bananas per pound?

• y = 0.59x

• y = 0.69x

• y = 0.49x

• y = 0.79x

If the dry cleaning cost for 3 pairs of pants is $18, what is the cost for 5 pairs?

• $25

• $40

• $30

• $35

What is the equation for the cost of dry cleaning pants?

• y = 6x

• y = 5x

• y = 8x

• y = 7x

If Micah saves $50, how much will his parents give him?

• $100

• $50

• $150

• $200

What is the constant of proportionality in Micah's savings scenario?

• 1

• 3

• 4

• 2

How much does it cost per student for the zoo trip?

• $20

• $15

• $10

• $25

What is the equation for the cost of the zoo trip per student?

• y = 25x

• y = 15x

• y = 20x

• y = 10x

If the school pays $1,500, how many students can attend the zoo?

• 100

• 90

• 80

• 110

Using the equation y = 15x, how much would it cost for 200 students to visit the zoo?

• $3,500

• $3,000

• $2,000

• $2,500