Thelengthofarectangleis6mgreaterthanthewidth.Theareais55m^2.Whatarethedimensionsof‘therectangle?我书后面答案是：5mwide,11mlong直接写答案会被.59214138~你别乱发啊-.-

Question

The length of a rectangle is 6 m greater than the width.The area is 55m^2.What are the dimensions of‘ the rectangle?
我书后面答案是：5m wide,11m long
直接写答案会被.
59214138~你别乱发啊-.-

Answer 1

设矩形的宽为X m,所以矩形的长为X+6.
X(X+6)=55
如果x=1 面积为7
x=2 16
X=3 27
X=4 40
X=5 55
所以宽5 长11