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Setler79 [48]
3 years ago
7

The price of a notebook was $3.70 yesterday. Today, the price fell to $3.20. Find the percent decrease

Mathematics
1 answer:
jeyben [28]3 years ago
6 0

Answer:

86% Decrease

Step-by-step explanation:

3.70 times x= 3.20      3.20 divided by 3.70= 0.86

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For A Free 50 Points... Tell me how to give an answer the "Brainliest Answer" Thingy... Also the person who answers with how to
KatRina [158]

Answer:

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Step-by-step explanation:

               

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3 0
2 years ago
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During a dry year, the reservoir level dropped 512 feet. The next year the level rose 314 feet. Which expression shows the total
tia_tia [17]

Answer:

You will be hot as shet

Step-by-step explanation:

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5 0
3 years ago
Show 0.00015 in scientific notation
Misha Larkins [42]
I think that the answer is 15*10^5
3 0
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.

3 0
3 years ago
The aquarium charges an entrance fee of $5 per child and $12 per adult. On one day, 100 people visited the aquarium. They collec
igor_vitrenko [27]

Answer:

We set up 2 equations

A) C + A = 100

B) 5C + 12A = 780

We multiply A by -5

A) -5C -5A = -500   then we add B

B) 5C + 12A = 780

7A = 280

Number of Adults = 40

5C = 780 - 40*12

5C = 780 -480

5C = 300

Number of Children = 60

Step-by-step explanation:

6 0
2 years ago
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