Representing Proportaionality Relationships by Equations
Ratios and Proportions, and more...

 1 EASY If y represents the number of tires a car dealership needs to purchase, and x are the number of cars that need tires, find y if x = 25. $$y = 4x$$ 1005043240

 2 EASY If x represents John's age and x = 15, find Sabrina's age, y, if $$y = \frac{2x}{3}$$ 1015202530

 3 EASY If x is the number each student can bring for the test, and x = 2, how many students are there (y)? $$y = 5x$$ 246810

 4 MEDIUM If y represents the average number of lightbulbs in a room, and x are the number of rooms, find y if x = 10. $$y = \frac{3x}{2}$$ 10582115

 5 HARD If y represents the average number of employees in a store, and x are the number of stores, find y if x = 87. $$y = \frac{2x}{3}$$ 5832212316