Given parameters:
Percentage gain = 300%
Selling cost last year = $2420
Unknown:
Selling cost this year = ?
Solution:
To solve this problem;
Profit percent = ![\frac{Selling cost this year - Selling cost last year}{Selling cost last year} x 100](https://tex.z-dn.net/?f=%5Cfrac%7BSelling%20cost%20this%20year%20-%20Selling%20cost%20last%20year%7D%7BSelling%20cost%20last%20year%7D%20x%20100)
300 = ![\frac{S - 2420}{2420} x 100](https://tex.z-dn.net/?f=%5Cfrac%7BS%20-%202420%7D%7B2420%7D%20%20x%20100)
3 = ![\frac{S - 2420}{2420}](https://tex.z-dn.net/?f=%5Cfrac%7BS%20-%202420%7D%7B2420%7D)
S- 2420 = 7260
S = $9680
To make a 300% gain, Jefferson Middle school needs a $9680 from fundraiser sales this year.
Answer:
n = 18
Step-by-step explanation:
2n - 5 = 31
Add 5 to each side
2n - 5+5 = 31+5
2n = 36
Divide each side by 2
2n/2 = 36/2
n = 18
Answer:
![Y = ( -1) | 8 | 17 | 26 | 35|](https://tex.z-dn.net/?f=Y%20%20%3D%20%20%28%20%20-1%29%20%7C%208%20%7C%2017%20%7C%2026%20%7C%2035%7C%20)
Step-by-step explanation:
![y = 9x + 8 \\ \\ \\ x = ( - 1) \\ y = 9( - 1) + 8 \\ y = - 9 + 8 = - 1 \\ \\ x = 0 \\ y = 9(0) + 8 \\ y = 0 + 8 = 8 \\ \\ x = 1 \\ y = 9(1) + 8 \\ y = 9 + 8 = 17 \\ \\ x = 2 \\ y = 9(2) + 8 \\ y = 18 + 8 = 26 \\ \\ x = 3 \\ y = 9(3) + 8 \\ y = 27 + 8 = 35 \\ \\ \\ Y = ( - 1) | 8 | 17 | 26 | 35|](https://tex.z-dn.net/?f=y%20%3D%209x%20%2B%208%20%20%5C%5C%20%5C%5C%20%20%5C%5C%20x%20%3D%20%28%20-%201%29%20%5C%5C%20y%20%3D%209%28%20-%201%29%20%2B%208%20%5C%5C%20y%20%3D%20%20-%209%20%2B%208%20%3D%20%20-%201%20%5C%5C%20%20%5C%5C%20x%20%3D%200%20%5C%5C%20y%20%3D%209%280%29%20%2B%208%20%5C%5C%20y%20%3D%200%20%2B%208%20%3D%208%20%5C%5C%20%20%5C%5C%20x%20%3D%201%20%5C%5C%20y%20%3D%209%281%29%20%2B%208%20%5C%5C%20y%20%3D%209%20%2B%208%20%3D%2017%20%5C%5C%20%20%5C%5C%20x%20%3D%202%20%5C%5C%20y%20%3D%209%282%29%20%2B%208%20%5C%5C%20y%20%3D%2018%20%2B%208%20%3D%2026%20%5C%5C%20%20%5C%5C%20x%20%3D%203%20%5C%5C%20y%20%3D%209%283%29%20%2B%208%20%5C%5C%20y%20%3D%2027%20%2B%208%20%3D%2035%20%5C%5C%20%20%5C%5C%20%20%5C%5C%20%20%3C%2Fp%3E%3Cp%3E%3C%2Fp%3E%3Cp%3EY%20%20%3D%20%20%28%20%20-%201%29%20%7C%208%20%7C%2017%20%7C%2026%20%7C%2035%7C%20)
Triangle-A is not "unique".
All of its angles are equal (60° each), and all of its sides
have the same length, but that length can be anything ...
1 millimeter, 1 light-year ... anything.
Each of the other choices can only be 1 triangle.
For each one, we can find the size of every angle,
and we can also find the length of every side.