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30.06.2019 •
Mathematics
Suppose that (y) varies with (x). write an equation for the inverse variation. y=4 when x=7 a: y= x/28 b: y=3x c: x= y/3 d: y= 28/x
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Ответ:
y = k/x, where k is the constant
if x = 7 and y = 4
4=k/7
k = 4*7 = 28
y = 28/x
answer is D
Ответ:
Step-by-step explanation: