larry wants to buy some carpeting for his living room. the length of the room is 2 times the width and the total area of the room is 8 square meters.

Question

anonymous · Answer

what is the legth of the living room? sorry i forgot that part.

unklerhaukus · Answer

$$l=2w;\qquad A=lw=8$$

anonymous · Answer

let the length be 'l' and width be 'w'

l=2w -----(1)

area of the room = l*w
8 = l*w
8 = 2w*w [from (1)]

$$4 = w^2$$
$$w = \sqrt{4} =2$$
$$\therefore\ length\ = 2*2 = 4\ \ [\ l=2w]$$

unklerhaukus · Answer

$$w=\sqrt{4}=\pm2$$
we can reject the negative answer because the width of a carpet must be positive

anonymous · Answer

thank you guys