Lesson 17: Two Related Quantities (Part 2) | Unit 6: Expressions and Equations

Multiple Choice

A car is traveling at a constant speed of 50 miles per hour. How long does it take to travel 100 miles?

• 2 hours
• 4 hours
• 3 hours
• 1 hour

Multiple Choice

A car is traveling at a constant speed of 50 miles per hour. Which equation represents the relationship between the travel distance in miles, $$d$$ , and the amount of travel time in hours, $$t$$ ?

• d = 50 + t
• d = 50t
• d = 50t^2
• d = 50/t

Multiple Choice

A car is traveling at a constant speed of 50 miles per hour. In your equation, which is the dependent variable and which is the independent variable?

• d is the dependent variable, t is the independent variable.

• t is the dependent variable, d is the independent variable.

Multiple Choice

Which of the following coordinates represents a point on the graph of the amount of time in hours it takes a ship to travel various distances in miles?

• (50, 2)
• (150, 6)
• (100, 4)
• (200, 8)

Multiple Choice

The graph represents the amount of time in hours it takes a ship to travel various distances in miles. What is the speed of the ship in miles per hour?

• 25 miles per hour
• 15 miles per hour
• 30 miles per hour
• 40 miles per hour

Multiple Choice

The graph represents the amount of time in hours it takes a ship to travel various distances in miles. Which equation relates the time, $$t$$ , it takes to travel a given distance, $$d$$ ?

• t = (1/50)d
• t = 25d
• t = (1/10)d
• t = (1/25)d