SOLUTION: w varies jointly as x and y and inversely as z. if w = 112 when x = 4 and y = 8 and z = 0.2, find w when x = 8, y = 10 and z = 4 (show your solution)

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Question 389835: w varies jointly as x and y and inversely as z. if w = 112 when x = 4 and y = 8 and z = 0.2, find w when x = 8, y = 10 and z = 4 (show your solution)
Answer by mananth(16946) About Me  (Show Source):
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w varies jointly as x and y and inversely as z. if w = 112 when x = 4 and y = 8 and z = 0.2, find w when x = 8, y = 10 and z = 4 (show your solution)
...
w%28alpha%29%28xy%2Fz%29
...
w=k%28xy%2Fz%29
...
w = 112 when x = 4 and y = 8 and z = 0.2
w=k%28xy%2Fz%29
112=k%284%2A8%2F0.2%29
112=k%28160%29
k=112/160
k=7/10
...
find w when x = 8, y = 10 and z = 4, k= 7/10
w=k%28xy%2Fz%29
w=%287%2F10%29%2A%288%2A10%2F4%29
w=14
...
m.ananth@hotmail.ca