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S_A_V [24]
3 years ago
13

Suppose that y varies inversely with x.Write an equation for the inverse variation Y=4 when x=7

Mathematics
1 answer:
myrzilka [38]3 years ago
4 0

Answer:

If y varies inversely as x, then we write it as:

y = k/x


where k is some constant.


If we multiply both sides of this equation by x we get an equation for k:

k = x*y


We are given that y=4 when x=7, therefore:

k = 7*4 = 28


Put this back into our original equation to get:

y = 28/x



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