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sergeinik [125]
2 years ago
5

1/3 of students at a school are boys. If there are 600 students, how many of them are girls?

Mathematics
1 answer:
Nadya [2.5K]2 years ago
7 0

400

Explanation:

1/3 of 600 is 200. That represents the boys.

Subtract 200 from 600, you get 400. That represents everybody else in the sample size (in this case, girls).

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Yo does anyone know how to do this?
Sonbull [250]

Answer:

The horizontal line is the x-axis and the vertical line is the y-axis.

Step-by-step explanation:

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3 0
2 years ago
Item 12
kozerog [31]

Answer:

The height is 4.472

Step-by-step explanation:

That formula is Heron's formula.

Where "s" is calculated like this:

s = (a + b + c) / 2

In this case:

a = 14

b = 12

c = 6

replacing:

s = (14 + 12 + 6) / 2

s = 16

Now we calculate the area:

A ^ 2 = 16 * (16−14) * (16−12) * (16−6)

A ^ 2 = 1280

A = 35.777

The area of the triangle is:

A = b * h / 2

In this case we will take the base as the longest side of the triangle, that is to say = 14

Thus:

h = A * 2 / b

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h = 4.472

So the height is 4.472

4 0
3 years ago
Solve for X: 3х + 4 = 9x + 3 ​
AleksandrR [38]

Answer:

x=1/6

Step-by-step explanation:

The steps are in the picture below

7 0
2 years ago
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What is the reciprocal of 3 1/5
Talja [164]

Answer:

5/16

Step-by-step explanation:

We need to change the mixed number to an improper fraction to find the reciprocal

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The reciprocal of 16/5 is found by flipping the fraction

5/16

4 0
3 years ago
Read 2 more answers
AC = 9x - 12, CD = 4x + 18, AD = ?​
GrogVix [38]

If we assume that point C is somewhere on segment AD, then,

AD = AC + CD

AD = (9x-12) + (4x+18)

AD = (9x+4x) + (-12+18)

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3 0
3 years ago
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