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VladimirAG [237]
3 years ago
7

When placed in a 100ml cube-shaped box, a substance fills the cube and has a volume of 100 ml. when placed in a 50?

Mathematics
1 answer:
Svetlanka [38]3 years ago
7 0
It seems that the question above is incomplete. I believe the complete statement would be written as:
When placed in a 100 mL cube-shaped box, a substance fills the cube and has a volume of 100 mL. When placed in a 50 mL tube, that same amount of substance fills the tube and thus has a 50 mL volume. What is the state of the substance?

From the statement, most likely, the substance is a gas since the volume it takes is the same as its container. Gas is the only phase that could take up the whole volume of its container given a certain mass.
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Step-by-step explanation:

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3 years ago
mauricio estimates that the first module of the project could be completed in as few as 15 days or could take as many as 25 days
4vir4ik [10]

Answer:

<em>Most likely time, </em>according to PERT (Program evaluation and review technique).

Step-by-step explanation:

PERT is "a statistical tool used in <em>project management" (Program evaluation and review technique (2020), </em>in Wikipedia), and it is commonly used with CPM <em>(Critical Path Method)</em> to manage projects.

Inside PERT, there are different defined times to accomplished an activity in a project, that is:

  • An <em>optimistic time</em> or minimum time required to accomplished an activity, i.e., if everything goes better than normal, the activity is accomplished before expected.
  • A <em>pessimistic time, </em>a time quite the opposite to optimistic time.
  • A <em>most likely time</em>, or a time required to accomplished an activity if everything goes as expected or normally.
  • An <em>expected time</em>, an statistical estimation.

Considering the question, we have that the <em>time</em> when "the first module of the project could be completed":

  • "[...] in as few as 15 days"  is the <em>optimistic time</em>.
  • "[...] or could take as many as 25 days" is the <em>pessimistic time</em>.
  • "[...] but most likely will require 20 days" is the <em>most likely time</em>.

As a result, the <em>20-day estimate</em> is called the <em>most likely time</em> in the context of the PERT/CPM techniques.

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