At a furniture manufacturer, worker A can assemble a shelving unit in 5 hours. Worker B can assemble the same shelving unit in 3 hours. Which equation can be used to find t, the time in hours it takes for worker A and worker B to assemble a shelving unit together? Rate
(Shelving Units per Hour)

Time
(Hours)

Fraction Completed
Worker A

One-fifth

t

Worker B

One-third

t

5 t + 3 t = 1
One-fifth t minus one-third t = 1
One-fifth t + one-third t = 1
5 t minus 3 5 = 1
I need help!!! pure panic!