急!懂英语和数学的来啊!The length and width of a rectangle are 12cm and 5cm _数学解答

急!懂英语和数学的来啊!
The length and width of a rectangle are 12cm and 5cm respectively. If the length is increased by 50% and the width is decreased by 20%.
(a)Find the original area of the rectangle.
(b)Find the new area of the rectangle.
(c)Find the percentage increase in the area of the rectangle.

人气：365 ℃　时间：2020-03-29 07:11:14

解答

先对一些词翻译：length——长度 width——宽度 rectangle——矩形 respectively——各自地 increased——被增加 decreased——被减少 original——最初的 area——面积 percentage——百分比翻译：一个长方形的长...