Equation:
since its a 15% increase its:
100+15=115
115/100=1.15 (changing from percentage to decimal)
1.15x=$10,120
x=$10,120/1.15
x = $8,800
the next given is a 10% increase so we do the same thing: 100+10=110
110/100=1.10 (changing from percentage to decimal)
1.10y=$8,800
y=$8,000
So the answer for how much it was raised 2 years ago is:
$8,000
hope it was helpful!
Answer:
Surface area: 250
Volume: 1375
Step-by-step explanation:
Scale factor: 4:5
This means that the dimensions of the larger figure are 5/4 of those in the smaller figure.
Surface area:
The surface area is found multiplying the square of the change(5/4) by the original surface area(160). So
![S = (\frac{5}{4})^2 \times 160 = \frac{25}{16} \times 160 = 25 \times 10 = 250](https://tex.z-dn.net/?f=S%20%3D%20%28%5Cfrac%7B5%7D%7B4%7D%29%5E2%20%5Ctimes%20160%20%3D%20%5Cfrac%7B25%7D%7B16%7D%20%5Ctimes%20160%20%3D%2025%20%5Ctimes%2010%20%3D%20250)
Volume:
The volume is found multiplying the cube of the change(5/4) by the original volume(704). So
![S = (\frac{5}{4})^3 \times 704 = \frac{125}{64} \times 704 = 125 \times 11 = 1375](https://tex.z-dn.net/?f=S%20%3D%20%28%5Cfrac%7B5%7D%7B4%7D%29%5E3%20%5Ctimes%20704%20%3D%20%5Cfrac%7B125%7D%7B64%7D%20%5Ctimes%20704%20%3D%20125%20%5Ctimes%2011%20%3D%201375)
Answer:
2,000,000
Step-by-step explanation:
Answer:
$19.55
Step-by-step explanation:
17*0.15=2.55
17+2.55=19.55
Answer:
r = 1/11
Step-by-step explanation:
16r-2r = -3r+6r+1
14r = 3r+1 (combine like terms)
11r = 1
r = 1/11