I got n=4
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Answer: 120
120
Step-by-step explanation:
I honestly can’t explain but I think you have to do this (actually I did the work so I’m right)
P/w = part/whole = ?/400
%/100= percent/100 = 30%/100
These numbers are equivalent
If you don’t understand the top then here is how to do the work-
400x30=12000
12000/100=120
Therefore it’s 120
Well if 100%= $8.05
then to find 10% you divide by 100.
10%=$0.85
You would then take this off of your original price. This is how I like to lay mine out:
100%=$8.05
- 10%=$0.85
= 90%=$7.20
Therefore 90% of $8.05 is $7.20
Answer:
![\large\boxed{B.\ x=1,\ C.\ x=-\dfrac{5}{3}}](https://tex.z-dn.net/?f=%5Clarge%5Cboxed%7BB.%5C%20x%3D1%2C%5C%20C.%5C%20x%3D-%5Cdfrac%7B5%7D%7B3%7D%7D)
Step-by-step explanation:
![2x-5=-3x^2\qquad\text{add}\ 3x^2\ \text{to both sides}\\\\3x^2+2x-5=0\\\\3x^2+5x-3x-5=0\\\\x(3x+5)-1(3x+5)=0\\\\(3x+5)(x-1)=0\iff3x+5=0\ \vee\ x-1=0\\\\3x+5=0\qquad\text{subtract 5 from both sides}\\3x=-5\qquad\text{divide both sides by 3}\\x=-\dfrac{5}{3}\\\\x-1=0\qquad\text{add 1 to both sides}\\x=1](https://tex.z-dn.net/?f=2x-5%3D-3x%5E2%5Cqquad%5Ctext%7Badd%7D%5C%203x%5E2%5C%20%5Ctext%7Bto%20both%20sides%7D%5C%5C%5C%5C3x%5E2%2B2x-5%3D0%5C%5C%5C%5C3x%5E2%2B5x-3x-5%3D0%5C%5C%5C%5Cx%283x%2B5%29-1%283x%2B5%29%3D0%5C%5C%5C%5C%283x%2B5%29%28x-1%29%3D0%5Ciff3x%2B5%3D0%5C%20%5Cvee%5C%20x-1%3D0%5C%5C%5C%5C3x%2B5%3D0%5Cqquad%5Ctext%7Bsubtract%205%20from%20both%20sides%7D%5C%5C3x%3D-5%5Cqquad%5Ctext%7Bdivide%20both%20sides%20by%203%7D%5C%5Cx%3D-%5Cdfrac%7B5%7D%7B3%7D%5C%5C%5C%5Cx-1%3D0%5Cqquad%5Ctext%7Badd%201%20to%20both%20sides%7D%5C%5Cx%3D1)
Answer:
A=bh=21·13=273
Step-by-step explanation:
using this formula A=bh
place base in b, and the height or hypotenuse in A