GOODMAN
If y varies jointly as x and z and y=80 when x=5 and z=8, find y when x=16 and z=2



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Diyadiya
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y varies jointly
so y=k * xz

Diyadiya
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80=k *5*8

GOODMAN
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1
and jus solve for k?

Diyadiya
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Yeah find out the value of k first

GOODMAN
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okie dokie!! thanks diya!!!

Diyadiya
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then you've to substitute it in y= k *xz for the new value of x & z and find out y

GOODMAN
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yea, okay, gotcha!! thank you thank you!!!!

Diyadiya
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hehe :) Anytime !!