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1. find the mean of three numbers x, y and z,
a.express x in terms of а, y and z
b find x when a=5, y=2 and z=1
3. y x varies directly as y and inversely as z and x 27, y =9 and z =2​

1 Find The Mean Of Three Numbers X Y And Z Aexpress X In Terms Of А Y And Z B Find X When A5 Y2 And Z1 3 Y X Varies Directly As Y And Inversely As Z And X 27 Y class=

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