You can put this solution on YOUR website! x people___________x hours___________x items persons________ hours_________x items
Which is 1 person working for hours to make x items.
The rate for y people is the rate of each of the y people simply added.
The one-person rate is x_items_per_hour.
The rate of work for y people is in units of x_items_per_hour.
Basic idea is for Rate, time in hours, job. The "job" is "x items".
y people working for y hours will produce: , in units of x.