If you did actually mean to say 13 then replace the 1/3 with 13
Answer:
The number of machines to complete job in 2 hours is 6.
Step-by-step explanation:
Using the relation of the rate of each one machine and knowing that adding up both rates.

Rate R =
'x' is the job
Rate S =
'x' is the job
So, using the equation of rates

Rate total is going to be a job in 2 hours so = 
<em>adding up</em>
<em>factoring the x</em>
<em>simplifying</em>
x= 
x= 6
Your answer is the one on the bottom left
Answer:
7.5/2 = 3.75
3.75/5 = .75
he gets .75 pounds of candy