9514 1404 393
Answer:
12 ft
Step-by-step explanation:
Let the width of the room be represented by w. Then the length is (2w-2), and the area is ...
A = LW
264 = (2w-2)w
132 = w² -w . . . . . . . divide by 2, eliminate parentheses
132.25 = w² -w +.25 . . . . . add (-1/2)² to complete the square
√132.25 = w -0.5 . . . . . take the square root
0.5 +11.5 = w = 12 . . . . . add 0.5; use the positive root
The width of the living room is 12 feet.
11 209/250
5.815 + 6.021
First add the numbers the way they are.
5.815
<u> +6.021</u>
<u> 11.836</u>
The whole number is 11.
11.836 = 11 + 0.836
0.836 = 836/1000
Dividing byy 4 we get,
0.836 = 836/1000 = 209/250
∴ 11.836 = 11 209/250
Answer
15$-50¢=14.50-4$=10.50
