mashysheep2006 mashysheep2006

10-03-2020
Mathematics

contestada

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

Respuesta :

hmoodya hmoodya

19-03-2020

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

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