Answer: a. 14% decrease or 86% of the whole
B. 137.5% increase
Step-by-step explanation:
A. Divide new price by old price and you get .86, change that to a percent by multiplying by 100. That equals 86%, the percent of change would be the difference of 100% to 86%, which is 14%
B. Use above explanation but don’t find the difference. 77/56= 1.375, 1.375*100=137.5
Answer:
ad= 15 fc= 9 eb= 22 i dont know what ag is im sorry, i think eg is 9
Step-by-step explanation:
sorry if i'm wrong i haven't done this in 3 years but i think they are right
Answer:
sorry this is for points
Step-by-step explanation:
Answer:
Equation 1,
![x + 2y = 11](https://tex.z-dn.net/?f=x%20%2B%202y%20%3D%2011)
Equation 2,
![x - 2y = 11](https://tex.z-dn.net/?f=x%20-%202y%20%3D%2011)
Take equation number 2.
![x - 2y = 11 \\ x = 11 + 2y](https://tex.z-dn.net/?f=x%20%20-%20%202y%20%3D%2011%20%5C%5C%20x%20%3D%2011%20%20%2B%20%202y)
Substitute 'x' in Equation number 1.
![x + 2y = 11 \\ 11 + 2y + 2y = 11 \\ 11 + 4y = 11 \\ 4y = 11 - 11 \\ 4y = 0 \\ y = \frac{0}{4} \\ y = 0](https://tex.z-dn.net/?f=x%20%2B%202y%20%3D%2011%20%5C%5C%2011%20%2B%202y%20%2B%202y%20%3D%2011%20%5C%5C%2011%20%2B%204y%20%3D%2011%20%5C%5C%204y%20%3D%2011%20-%2011%20%5C%5C%204y%20%3D%200%20%5C%5C%20y%20%3D%20%20%5Cfrac%7B0%7D%7B4%7D%20%20%5C%5C%20y%20%3D%200)
<u>y = 0.</u>
So x,
![x = 11 - 2y \\ x = 11 - 2(0) \\ x = 11 - 0 \\ x = 11](https://tex.z-dn.net/?f=x%20%3D%2011%20-%202y%20%5C%5C%20x%20%3D%2011%20-%202%280%29%20%5C%5C%20x%20%3D%2011%20-%200%20%5C%5C%20x%20%3D%2011)
<u>x = 11.</u>
Answer:
b the hypotenuse of the triangle