## If $$x$$ and $$y$$ are positive numbers and $$z = xy^2,$$ a $$50$$ percent increase in $$x$$ and a $$20$$ percent decrea

##### This topic has expert replies
Legendary Member
Posts: 1857
Joined: 14 Oct 2017
Followed by:3 members

### If $$x$$ and $$y$$ are positive numbers and $$z = xy^2,$$ a $$50$$ percent increase in $$x$$ and a $$20$$ percent decrea

by VJesus12 » Thu May 13, 2021 6:56 am

00:00

A

B

C

D

E

## Global Stats

If $$x$$ and $$y$$ are positive numbers and $$z = xy^2,$$ a $$50$$ percent increase in $$x$$ and a $$20$$ percent decrease in $$y$$ would result in which of the following changes in $$z?$$

(A) A decrease of $$4\%$$
(B) A decrease of $$14\%$$
(C) An increase of $$4\%$$
(D) An increase of $$20\%$$
(E) An increase of $$30\%$$