Valeriecompton Valeriecompton 13-04-2018 Mathematics contestada Find y when x=4 and z=15; if y varies jointly as x and z y=5 when z=8 and x=10 A. Y=1/2.Y•12;15/4 B. Y=1/2. Y•15; 12/4 C. Y=1/16. Y•15; 15/4 D. Y=1/16. Y•2•15; 12/4