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erik [133]
3 years ago
6

In a class of 20 students 3/5 are boys. If 4 more boys join the class, what fraction of the class are boys now?

Mathematics
2 answers:
cupoosta [38]3 years ago
6 0

if 4 more boiiz join the class it will be 2/5

IgorLugansk [536]3 years ago
6 0

Answer:

2/3 of the class is now boys

Step-by-step explanation:

If you start with 3/5 of 20 is boys that would mean there were 12 boys. If you add 4 more that makes it 16/24 and you can simplify that fraction to 4/6 and simplified even further is 2/3.

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The <em>quadratic</em> function g(x) = (x - 5)² + 1 passes through the points (2, 10) and (8, 10) and has a vertex at (5, 1).

<h3>How to analyze quadratic equations</h3>

In this question we have a graph of a <em>quadratic</em> equation translated to another place of a <em>Cartesian</em> plane, whose form coincides with the <em>vertex</em> form of the equation of the parabola, whose form is:

g(x) = C · (x - h)² - k     (1)

Where:

  • (h, k) - Vertex coordinates
  • C - Vertex constant

By direct comparison we notice that (h, k) = (5, 1) and C = 1. Now we proceed to check if the points (x, y) = (2, 10) and (x, y) = (8, 10) belong to the parabola.

x = 2

g(2) = (2 - 5)² + 1

g(2) = 10

x = 8

g(8) = (8 - 5)² + 1

g(8) = 10

The <em>quadratic</em> function g(x) = (x - 5)² + 1 passes through the points (2, 10) and (8, 10) and has a vertex at (5, 1).

To learn more on parabolae: brainly.com/question/21685473

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7 0
2 years ago
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chubhunter [2.5K]

Answer:

3 add 1013 hay so youre welcome hoop

Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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We can use this fact to determine the remainder, because we divided our P(X) by x + 1 which is the same as x - (-1). So we plug in P(-1).

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