SOLUTION: the width of a rectangular window is two feet more than its height. if the area is 35 sq. ft, what's the height? a. 9ft b. 7 ft c.5ft d. 3 ft

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: the width of a rectangular window is two feet more than its height. if the area is 35 sq. ft, what's the height? a. 9ft b. 7 ft c.5ft d. 3 ft      Log On


   

Question 308212: the width of a rectangular window is two feet more than its height. if the area is 35 sq. ft, what's the height?
a. 9ft
b. 7 ft
c.5ft
d. 3 ft
Answer by edjones(8007) About Me  (Show Source):
You can put this solution on YOUR website!
w=h+2
hw=35
h(h+2)=35
h^2+2h-35=0
(h+7)(h-5)=0
h=5'
.
Ed