A rectangular brass slave has a square base of side x cm, and height h cm, its weight, w kg, is given by the formula w=(3x^2 h)/10. How is w changed if x is trebled and h is halved?
(with solution pls... tnx...)
What didn't you understand about the answer Bobpursley posted for you?
http://www.jiskha.com/display.cgi?id=1357736967