Cost and Time Calculations

This video tutorial covers two main problems: calculating entrance fees for a state park based on the number of people in a vehicle, and determining the time required to make toast using a toaster. The instructor explains how to organize information using tables, identify rates of change, and apply mathematical equations to solve these problems. The video is designed for students who missed the class or need a recap.

What is the entrance fee for a car with two people?

• $4

• $14

• $20

• $32

How much is the base cost when there are zero people in the vehicle?

• $14

• $0

• $3

• $8

If a bus is charged $122, how many people does it contain?

• 40

• 50

• 38

• 30

What is the rate of change per person in the entrance fee problem?

• $3

• $4

• $5

• $2

What is the equation for calculating the cost based on the number of people?

• C = 3p + 8

• C = 2p + 10

• C = 4p + 6

• C = 5p + 4

How long does it take to make four slices of toast?

• 105 seconds

• 70 seconds

• 140 seconds

• 35 seconds

What is the constant rate of time per slice of toast?

• 7.5 seconds

• 12.5 seconds

• 8.75 seconds

• 10 seconds

How many slices of toast can be made in 280 seconds?

• 28

• 24

• 20

• 32

If it takes 175 seconds to make 20 slices of toast, what is the constant rate?

• 8.5 seconds

• 8.75 seconds

• 9 seconds

• 9.25 seconds

What is the total time in seconds for 4 minutes and 40 seconds?

• 240 seconds

• 260 seconds

• 300 seconds

• 280 seconds