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vazorg [7]
9 months ago
7

At a local prechool there i a ratio of 3 boy to every 4 girl. If there are 245 total prechooler how many are boy

Mathematics
1 answer:
Georgia [21]9 months ago
3 0

If there are 245 total preschoolers, there will be 105 boys.

  • What is unitary method?
  • The unitary technique involves first determining the value of a single unit, followed by the value of the necessary number of units. What can be values and units.
  • Let's say you go to the store to buy six apples. You are informed by the shopkeeper that he is offering 10 apples for Rs 100. In this instance, the value and the units are the price of the apples.
  • Recognizing the units and values is crucial when using the unitary technique to a problem.
  • Always write the items that need to be computed on the right side and the things that are known on the left side to simplify things. We are aware of the quantity of apples and the amount of money in the aforesaid problem.

acc to our question-

  • Fraction of boys = 3/7
  • Fraction of girls = 4/7
  • Total number of students = 245
  • The number of boys will be:
  • = 3/7 × 245.
  • = 105 boys

Therefore, there are 105 boys in the school.

learn more about unitary method click here:

brainly.com/question/24587372

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For function k(x, y) = -x² - y² + 4x + 4y,

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For given question,

We have been given a function k(x, y) = -x² - y² + 4x + 4y

We need to find the absolute maximum and minimum values of the function, subject to the constraints 0 ≤ x ≤ 3, y ≥ 0, and x + y ≤ 6

First we find the partial derivative of function k(x, y) with respect to x.

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To find the critical point:

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We have been given constraints 0 ≤ x ≤ 3, y ≥ 0, and x + y ≤ 6

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⇒ k(3, 3) = -3² - 3² + 4(3) + 4(3)

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the absolute minimum is 0 and the absolute maximum is 6

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<em>For the function, th</em><em>e domain exists </em><em>on all </em><em>real numbers</em><em> while the range exist for the value</em><em> f(x) ≥ 10</em>

<h3>Vertex, domain and range of a function</h3>

The vertex of a quadratic or linear function is in the form

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For the function, the domain exists on all real numbers while the range exist for the value f(x) ≥ 10

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