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Assoli18 [71]
3 years ago
7

there are 28 students in a mathematics class. if 1/4 of the students are called to the guidance office,1/3 of the remaining stud

ents are called to the nurse, and, finally, 1/2 of those left go to the library, how many students remain in the classroom
Mathematics
2 answers:
serg [7]3 years ago
8 0
28/4 = 7 students to guidance office/ 21 left

21/3 = 7 to nurse/ 14 left

14/2 = 7 to library/ 7 left

7 students left in the classroom
grigory [225]3 years ago
6 0
It should be about 24.7
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Just give me the answer
Hoochie [10]

Answer:

1/32768

Step-by-step explanation:

I don't know how to explain it to you. I am sorry.

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3 years ago
Solve. Write the solution in interval notation. -2x>-8 and -5x<20.
Novosadov [1.4K]

Answer:

The interval notation of the solution is (-4 , 4)

Step-by-step explanation:

* Let us explain a very important point in solving inequality

- When you multiply or divide an inequality by negative number we

   must reverse the symbol of the inequality

- Ex:

∵ 2 < 3

- If we multiply the both sides of the inequality by -1, then the

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* Now let us solve the problem

∵ -2x > -8

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∵ -5x < 20

- Divide both sides by -5 and remember to reverse the symbol of the

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∴ x > -4

- From both solutions

∴ -4 < x < 4

∴ The solution is {x : -4 < x < 4}

- Interval notation is a way of writing the solutions of inequalities

 ( , ) if x does not equal the end numbers

 [ , ] if x equals the end numbers

 [ , ) , ( , ] if x equals one of the two end numbers

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4 0
3 years ago
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Brums [2.3K]

Answer:

p=\frac{576}{17}

Step-by-step explanation:

decimal form p= 33.8823529411764705

mixed number form= 33\frac{15}{17}

6 0
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slega [8]

Answer:

No answer

Step-by-step explanation:

5x-20-X+9

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5 0
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Karolina [17]

Answer:

y=(2x/3)-(11/3)

Step-by-step explanation:

https://www.emathhelp.net/calculators/algebra-1/parallel-and-perpendicular-line-calculator/

7 0
3 years ago
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