Question

If x varies inversely as y and y varies directly as z, what is the relationship between x and z​

Answer 1

X varies inversely as z

Explanation:

(algebraic method)

Know that x=1/ay

and that y=bz

Plug-in bz for y

x=1/abz

In this problem, x is equal to 1 divided by some constant times y

Y is equal to some constant times z

Therefore, x is equal to 1 divided by some constant *some other constant* z

Obviously if a and b are constant, then ab is also a constant.

Answer 2

The answer is D. F varies directly with x and y, and inversely with z.

The rest of the answers to this lesson are-

B. y= kx^3/sqrt z

B. kx/z

k=6

x=4

A. S= (56)(52)/(13)(14)

16mph

Explanation:

Just took it. Edg 2021. Hope this helps :)