標題: 有幾條S1低能數唔係太識 [打印本頁] 作者: 黑暗小魔星 時間: 8/10/2006 07:42 PM 標題: 有幾條S1低能數唔係太識 The figure shows a rectangle of length (X+8)cm and width x cm (a)express the perimeter of the rectangle in terms of x. (b1)if the perimeter of the rectangle is 36cm,set up an algebraic equation to find the value of x. (b2)if the perimeter of the rectangle is greater than or equal to 36cm ,set up an algebraic inequality involving x.代數共3條,感激作者: ting 時間: 8/10/2006 07:54 PM a. (X+8+x)*2 cm b1. (x+8+x)*2=36 x=5 b2. (x+8+x)*2>=36