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Elis [28]
2 years ago
10

ankita and her three friends are going to share a three bedroom apartment if the total rent is Rp.r, what is ankitas share

Mathematics
1 answer:
Alik [6]2 years ago
3 0

Using proportions, it is found that Ankita's share is of \frac{x}{4}, considering that the total rent is of x Rp.r.

  • This question is solved by <em>proportions</em>, using a rule of three.
  • Considering that there are 4 people and the rent is of x Rp.r, 4 people pay x, how much does Ankita, which is one person, pay?

The <em>rule of three</em> is:

4 people - x

1 people - a

Applying cross multiplication:

4a = x

a = \frac{x}{4}

Ankita's share is of \frac{x}{4}, considering that the total rent is of x Rp.r.

You can learn more about proportions at brainly.com/question/24372153

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Rachel prepared 24 kilograms of dough after working 6 hours. How
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24/6= 4kg/hour

44/4=11

she prepared the kg in 11 hrs of work

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Which is an equilateral triangle?
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Answer:

B) B only

Step-by-step explanation:

An equilateral triangle is a triangle that has all equal sides. Triangle B is the only one that has equal sides.

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How do I Isolate the radical on the left side? √4x+5+1=0
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If diameter of a circle is 28 cm,then the circumference of the circle is equal to​
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A rectangular storage container with an open top is to have a volume of 24 cubic meters. The length of its base is twice the wid
Mariana [72]

Answer:

419.25

Step-by-step explanation:

The calculation of the cost of materials for the cheapest such container is shown below:-

We assume

Width = x

Length = 2x

Height = h

where, length = 2 \times width

Base area = lb

= 2x^2

Side area = 2lh + 2bh

= 2(2x)h + 2(x)h

= 4xh + 2xh

Volume = 24 which is lbh = 24

h = \frac{24}{2x^2} \\\\ h = \frac{12}{x^2}

Now, cost is

= 13(2x^2) + 9(4xh + 2xh)\\\\ = 13(2x^2) + 9(4x + 2x)\times \frac{12}{x^2} \\\\ = 26x^2 + \frac{648}{x}

now we have to minimize C(x)

So, we need to compute the C'(x)

= 52x - \frac{648}{x^2}

C"(x)  = 52x - \frac{1,296}{x^3}

now for the critical points, we will solve the equation C'(x) = 0

= 52x - \frac{648}{x^2} = 0\\\\ x = \frac{648}{52}^{\frac{1}{3}}

C" = ((\frac{648}{52} ^{\frac{1}{3} } = 52 + \frac{1296}{(\frac{648}{52})^\frac{1}{3} )^3}\\\\ = 52 + \frac{1296}{\frac{648}{52} } >0

So, x is a point of minima that is

= (\frac{648}{52} )^\frac{1}{3}

Now, Base material cost is

= 13(2x^2)\\\\ = 26(\frac{648}{52} )^\frac{2}{3}

= 139.75

Side material cost is

= \frac{648}{x} \\\\ = \frac{648}{(\frac{648}{52})^\frac{1}{3}  }

= 279.50

and finally

Total cost is

= 139.75 + 279.50

= 419.25

4 0
3 years ago
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