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Solve for the values of x and y in the 36^x * 48^y = 192

Mathematics

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6

Step-by-step solution

4 steps

Ili kutatua swali hili, tutatumia formula ya pembe ya ndani ya poligoni ya kawaida.

  1. Andika formula ya pembe ya ndani ya poligoni ya kawaida.

    Pembe ya ndani ya poligoni ya kawaida yenye nn pande hutolewa na formula:

    I=(n−2)×180∘nI = \frac{(n-2) \times 180^\circ}{n}
  2. Andika milinganyo ya pembe za ndani kwa poligoni mbili.

    Kwa poligoni ya kwanza yenye 3y3y pande (n1=3yn_1 = 3y), pembe yake ya ndani ni:

    I1=(3y−2)×180∘3yI_1 = \frac{(3y - 2) \times 180^\circ}{3y}

    Kwa poligoni ya pili yenye yy pande (n2=yn_2 = y), pembe yake ya ndani ni:

    I2=(y−2)×180∘yI_2 = \frac{(y - 2) \times 180^\circ}{y}
  3. Tengeneza mlinganyo kulingana na masharti yaliyotolewa.

    Imesemwa kuwa pembe ya ndani ya poligoni ya kwanza inazidi pembe ya ndani ya poligoni ya pili kwa 40∘40^\circ. Hivyo:

    I1−I2=40∘I_1 - I_2 = 40^\circ (3y−2)×1803y−(y−2)×180y=40\frac{(3y - 2) \times 180}{3y} - \frac{(y - 2) \times 180}{y} = 40
  4. Tatua mlinganyo ili kupata thamani ya yy.

    Gawanya mlinganyo mzima kwa 20:

    (3y−2)×93y−(y−2)×9y=2\frac{(3y - 2) \times 9}{3y} - \frac{(y - 2) \times 9}{y} = 2

    Rahisisha:

    3(3y−2)y−9(y−2)y=2\frac{3(3y - 2)}{y} - \frac{9(y - 2)}{y} = 2

    Zidisha pande zote mbili kwa yy ili kuondoa denominator:

    3(3y−2)−9(y−2)=2y3(3y - 2) - 9(y - 2) = 2y

    Panua mabano:

    9y−6−9y+18=2y9y - 6 - 9y + 18 = 2y

    Unganisha vigezo vinavyofanana:

    12=2y12 = 2y

    Gawanya kwa 2:

    y=122y = \frac{12}{2} y=6y = 6

    Thamani ya yy ni:

    66
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