SOLUTION: You are planning to put a new digital flat TV on a wall that is 12 ft long and 9 ft
high. The digital TV has a diagonal of 72 inches. The length of the TV is twice
the width of t
Algebra.Com
Question 361807: You are planning to put a new digital flat TV on a wall that is 12 ft long and 9 ft
high. The digital TV has a diagonal of 72 inches. The length of the TV is twice
the width of the TV. How much of the wall will still need to be decorated
around the TV?
Answer by mananth(16946) (Show Source): You can put this solution on YOUR website!
Area of wall = 9*12 = 108 ft^2
...
width of TV = x
Length = 2x
...
diagonal of TV = 72 "= 6 ft
..
x^2+(2x)^2=6^2
x^2+4x^2=36
5x^2=35
x^2=36/5
x = sqrt(36/5)
width = 2.68 ft.
length = 2.68*2=5.36 ft
Area of TV = 2.68*5.36
=14.36ft^2
..
Area of Wall - Area of TV= 108-14.36 = 93.63 ft^2
m.ananth@hotmail.ca
RELATED QUESTIONS
You are planning on putting a new digital TV on a wall that is 12 feet long and 9 feet... (answered by ankor@dixie-net.com)
A television weighs 50 pounds and a microwave weighs 30 pounds. A TV occupies 4 ft.³ and (answered by Theo)
Sizes of TVs are determined by a diagonal measurement of their screen. If a TV has a... (answered by MathLover1)
How many 32 inch tvs can you fit on a 19'4" high and 19' wide wall?
(answered by FrankM)
You just received a shipment of 12 televisions. 4 of the televisions are defective. If 2... (answered by Big Poop)
2.)Suppose the warranty period on your family’s new television is about to expire and you (answered by stanbon)
Televisions are sold by the length of the diagonal across the screen. If a new 48-in... (answered by rfer)
A store sells televisions for $360 and digital video recorders for $270. At the beginning (answered by greenestamps)
Comparing TVs The screen size of a television is determined by the length of the diagonal (answered by ikleyn)