if x varies directly with y and inversely with z, and x = 24 when y = 16 and z = 2, find y when x = 6 and z = 5.
• y = 10
• y = 6
• y = 5
• y = 8
Nonsense answer = Report
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Combined Variation
x = ky/z
(1) Find k
x = ky/z
24 = k(16)/(2)
48 = 16k
k = 3
(2) Find y using k = 3
x = 3y/z
6 = 3y/2
12 = 3y
y = 4
Answer: y = 4
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