Question

Suppose y varies jointly as x and z. Find y when x = 2 and z = 11, if y = 160 when x = 3 and z = 8. Round your answer to the nearest hundredth, if necessary.

Answer 1

Step 1– y=kxz
160=k(3)(8)
160=k(24)
24/160=(k)24/24
6.667=k

Step 2– y=kxz
y=(6.667)(2)(11)
y=146.67