soltmanc55 soltmanc55

07-08-2017
Mathematics

contestada

If w varies jointly as x and y when w = 12, x = 2, and y = 18, what is the value of y when w = 16 and x = 6?

8/9
13.5
8

Respuesta :

kphung76127 kphung76127

07-08-2017

Joint variation means that w=kxy where k is constant.
Finding k:
12=k*2*18
12=36k
k=1/3

Now plug in second set of values
16= 1/3*6*y
16=2*y
y=8

Final answer: 8

Answer Link

07-08-2017

The answer is eight

Answer Link

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