Question

z varies jointly as x and y. If z = 3 when x = 3 and y = 15, find z when x = 6 and y = 9​

Answer 1

Answer:

z=2

Step-by-step explanation:

from above

(x+y/3)-3=z

so

6+9/3=15/3=5

5-3=2

so answer is 2

Hope this helps