Question

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

Answer 1

I think the answer to y when x=4 and z=15; if y varies jointly as x and z y=5 when z=8 and x=10 is B. Y=1/2. Y•15; 12/4.