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Dmitry_Shevchenko [17]
2 years ago
10

There are 30 students in a class. 17 of the students are boys. What percent of the class are girls.

Mathematics
1 answer:
-BARSIC- [3]2 years ago
7 0

Answer:

0.43%

Step-by-step explanation: Since there are 13 girls, you need to do 13/30 to find the percentage of girls.

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Nataly [62]

Answer:

13/5

Step-by-step explanation:

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What is x. Please show *all* the steps.
Zolol [24]

The equation 5/2 - x + x - 5/x + 2 + 3x + 8/x^2 - 4 = 0 is a quadratic equation

The value of x is 8 or 1

<h3>How to determine the value of x?</h3>

The equation is given as:

5/2 - x + x - 5/x + 2 + 3x + 8/x^2 - 4 = 0

Rewrite as:

-5/x - 2 + x - 5/x + 2 + 3x + 8/x^2 - 4 = 0

Take the  LCM

[-5(x + 2) + (x -5)(x- 2)]\[x^2 - 4 + [3x + 8]/[x^2 - 4] = 0

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Evaluate the like terms

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Multiply through by x^2 - 4

x^2 - 12x+ 3x + 8 = 0

Evaluate the like terms

x^2 -9x + 8 = 0

Expand

x^2 -x - 8x + 8 = 0

Factorize

x(x -1) - 8(x - 1) = 0

Factor out x - 1

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Solve for x

x = 8 or x = 1

Hence, the value of x is 8 or 1

Read more about equations at:

brainly.com/question/2972832

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What is the simplest fraction whose value is equal to the number $\textcolor{red}{\heartsuit}$ depicted on this number line?
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Answer:

Step-by-step explanation:

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27/64^-2/3=16/9.......
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3 years ago
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