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Mathematics 21 Online
OpenStudy (rainbow_dash):

Y varies jointly as x and the inverse of z. y=-12 when x=-8 and z=6. Find y when x=5 and z=-3.

hero (hero):

Hint: yz = kx

OpenStudy (rainbow_dash):

okay yeah i just solved it hehe. i'm having difficulty with a new one though..it's mainly jsut the terms in this lesson that are giving me a hard time.

OpenStudy (rainbow_dash):

y ended up equalling 15 :)

hero (hero):

What did k = ?

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