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If x varies directly as y and inversely as z, and x=9 when y=6 and z=12, find x and y=3 and z=8

If x varies directly as y and inversely as z, and x=9 when y=6 and z=12, find x and y=3 and z=8

Asked by: Guest | Views: 43
Total answers/comments: 1
Guest [Entry]

"x=ky over z

xy=kz

xy over y =k

(9)(6) over 12 =k

54 over 12 =k

4.5=k

x=ky over z

x=(4.5)(3) over 8

x=`13.5 over 8

x=1.68"