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Math, 28.10.2019 17:29, kurtiee

Xvaries jointly as w, y and z. if x=18 when w=2 y=6 and z=5 find x when w=5 y=12 and z=13

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  • Réponse publiée par: alexespinosa

    234

    Step-by-step explanation:

    x=kwyz

    18=k(2)(6)(5)

    18=k(60)

    18=60k

    \frac{18}{60}=\frac{60k}{60}

    \frac{18}{60}=k

    x=kwyz

    x=(\frac{18}{60})(5)(12)(13)

    x=234

  • Réponse publiée par: cleik
    F = constant of proportionality
       x = fwyz          x = (3/10)(5*12*3)
    18 = f(2*6*5)    x = (3/10)(180)
    18 = f(60)         x = 3*180
    60      60                   10
      f =  3              x = 3*18
            10             x = 54

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Xvaries jointly as w, y and z. if x=18 when w=2 y=6 and z=5 find x when w=5 y=12 and z=13...

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