The lenght of a rectangle is 10cm greater than its width. The perimeter of the rectangle is 1m. A.Find the simplest expression for the perimeter for the rectangle if the width is x.B. Find the width of the rectangle. C. Calculate the area of the rectangle. Answers: A=20+x .B=20 .C=600
Mathematics-please help quick!! - Henry, Monday, June 11, 2012 at 4:58pm
Width = X cm.
Length = (X+10) cm.
P = 1 m = 100 cm.
B. P = 2(X+10) + 2x = 100 cm.
2x + 20 + 2x = 100
4x = 100 - 20 = 80
X = 80/4 = 20.
C. L = x + 10 = 20 + 10 = 30 cm.
A = L*W = 30 * 20 = 600 cm.
Mathematics-please help quick!! - mary ou, Sunday, March 9, 2014 at 11:26am
less than 8 inches in lengh width and height