Two barges must cross the river carrying loads of potatoes. Barge A has 85 tons of potatoes, and Barge B
has 15 tons of potatoes. The barges need to be loaded evenly before they can cross. Workers can transfer 5
tons of potatoes from Barge A to Barge B every hour. How many hours will it take for the barges to be loaded
evenly?
(a) Write a system of linear equations in slope-intercept form that models the situation. Let x represent
hours of work and y represent tons of potatoes.
(b) Neatly graph the system on the coordinate plane.
(c) Label the solution on the graph and describe what it represents.