Answer:
15
Step-by-step explanation:
16^2-1^2=15
444.25(8) = 3554
4000 - 3554 = 446 <== what she still owes
Answer:
![B =120](https://tex.z-dn.net/?f=B%20%3D120)
Step-by-step explanation:
Given
Represent Kitchen with K and Bedroom with B.
So:
![K = 50ft^2](https://tex.z-dn.net/?f=K%20%3D%2050ft%5E2)
<em />
<em> --- 10 more than 1/3 of Bedroom area</em>
Required
Determine the bedroom area
The expression of K and B has been determined above.
The next step is to substitute 50 for K in the second equaion
![K = 10 + \frac{1}{3}B](https://tex.z-dn.net/?f=K%20%3D%2010%20%2B%20%5Cfrac%7B1%7D%7B3%7DB)
![50 = 10 + \frac{1}{3}B](https://tex.z-dn.net/?f=50%20%3D%2010%20%2B%20%5Cfrac%7B1%7D%7B3%7DB)
Multiply through buy 3
![3 * 50 = 3 * 10 +\frac{1}{3}B * 3](https://tex.z-dn.net/?f=3%20%2A%2050%20%3D%203%20%2A%2010%20%2B%5Cfrac%7B1%7D%7B3%7DB%20%2A%203)
![150 = 30 +B](https://tex.z-dn.net/?f=150%20%3D%2030%20%2BB)
Make B the subject
![B =150 - 30](https://tex.z-dn.net/?f=B%20%3D150%20-%2030)
![B =120](https://tex.z-dn.net/?f=B%20%3D120)
<em>Hence, the area of the bedroom is 120ft^2</em>
Well, it went down from 95 to 85.5, so it dropped by $9.5.
if we take 95 to be the 100%, what is 9.5 off of it in percentage?