A printing shop with three processes (binding, photocopy, and checkout) has two types of customers (copy only and copy and bind). A printing shop has a demand of 12 copy only customers per hour and 20 copy and bind customers per hour. Photocopy customers visit the photocopy and checkout processes while copy and bind customers visit all three processes. Required:
What is total demand?

Customers:  

Copy         Copy and bind  

12                          20  

Processes:  

Process - Binding - Copy - Checkout.

Photocopy customer visit copy and checkout. While copy & bind process customer visit all 3 processes

The table below is illustrating the demand:

Process                                       Binding  Copy  Checkout  

Copy & bind customers                  20        20         20  

Only photocopy customers                         12          12  

Total customer for each process  20        32         32

So, the total demand of the 3 processes is equals to 84 [20+32+32]

bd = 9 cm

step-by-step explanation:

in a 30°-60°-90° triangle, the ratio of side lengths is 1 : √3 : 2. that is, the longest side (hypotenuse) is twice the length of the shortest side.

all of the triangles in your geometry are 30°-60°-90° triangles. ac is the hypotenuse of δacd, and the short side of δabc.

the short side ad of δacd will be half the length of ac, so 3 cm. the hypotenuse ab of δabc will be twice the length of ac, so 12 cm. segment bd is the difference of the lengths ab and ad, so is

bd = ab -ad

bd = 12 cm - 3 cm = 9 cm

comment on side length ratios

you can figure the ratios of side lengths in a 30°-60°-90° triangle by considering the trig ratios of the angles. or you can figure the length of the altitude of an equilateral triangle of side length 2 using the pythagorean theorem.

e would be the answer