SOLUTION: You must form an equation and solve it to the remaining application problems. Oh, and don't forget to clearly define your variable(s). Please write your answers in complete sentenc

Algebra ->  Problems-with-consecutive-odd-even-integers -> SOLUTION: You must form an equation and solve it to the remaining application problems. Oh, and don't forget to clearly define your variable(s). Please write your answers in complete sentenc      Log On


   

Question 812194: You must form an equation and solve it to the remaining application problems. Oh, and don't forget to clearly define your variable(s). Please write your answers in complete sentences.
A rectangular mirror has an area of 10 FT^2 (square), and it is 1.5 ft longer than it is wide. Find the dimensions of the mirror.
A=(L)(W), so
10=W+
Answer by CubeyThePenguin(3113) About Me  (Show Source):
You can put this solution on YOUR website!
w = width

area = (length)(width)
10 = (w)(w + 1.5)
10 = w^2 + 1.5w
20 = 2w^2 + 3w
0 = 2w^2 + 3w - 20
0 = (2w - 5)(w + 4)
w = 5/2, w = -4

Distance has to be positive, so the mirror is 5/2 = 2.5 ft wide and 4 ft long.