Quadratic or not?
What is the mathematical equation?
A department store sells 30 portable electric fans per week at Php 275.00 each. The manager believes that for each decrease of Php 20.00, 3 more electric fans will be sold. The total revenue of the department store is Php 8,385.00.

1

Answers

2016-06-26T06:03:38+08:00
Quadratic
(275x-20)(3x+30)=0
0