Answer:
19.24 weeks
Step-by-step explanation:
Given that;
Mean, m = 18
Standard deviation, s = 3
Break down cost = 2000
Preventive maintenance cost = 1400
The optimal preventive maintenance level is Given by :
Mean + service level * standard deviation
Service level = preventive maintenance cost / (breakdown cost + preventive maintenance cost)
Hence,
Service level = 1400/(1400+2000) = 1400 / 3400
Service level = 0.4117647
Optimal preventive maintenance level :
18 + (0.4117647 * 3)
18 + 1.2352941
= 19.235
= 19.24 weeks
Answer:
21
Step-by-step explanation:
hundreds place is 2 tenths are 21 and ones is 210
A cube has equal length, height and depth.
The area of one face is 5inches * 5inches, which would equal 25inches^2.
Multiply this by 6, for the 6 faces on a cube, and we get 150inches^2 of cardboard.
It’s A letter A hope this helped
D cause gas is an air unless you mean car gas then anyways its D
