## y is inversely proptional to x when y = 7, x = 9 a) work out an equation connecting y and x b) work out the value of y when x = 21

Question

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## Answers ( )

Answer:a) yx=63

b) y=3

Step-by-step explanation:a)yx=k (inverse formula)

7(9)=k

63=k

b)y(21)=63

y=63/21

y=3