Three machines operating independently, simultaneously, and at the same constant rate can fill a certain production order in 36 hours. if one additional machine were used under the same operating conditions, in how many fewer hours of simultaneous operation could the production order be fulfilled? a. 6b. 9c. 12d. 27e. 48

Option B is the answer.

Step-by-step explanation:

Given is that all 3 machine works at same rate or

We get;

=>

x = 108

Now given is that the fourth machine was used with same rate that is

Total rate for 4 machines  =

=

=

This is the over all rate of four machines.

And we know that time = 1/Rate

So, time = 27 hours

Therefore, the fewer hours were hours

Option B is the answer.

2.

according to newton’s cannonball model, what happens if the cannonball's velocity is enough to overpower the pull of earth’s gravitystep-by-step explanation:

question: how many people can she serve?

answer: she can serve 16.66666667 people. so she can only give 16 people a complete serving.

question: does she have enough ice cream for her guests?

answer: no. explanation: she only has enough for 16 people to have a full serving. however, she can give a 17th person a partial serving.