Answer:
A
Step-by-step explanation:
(2m-n) is a factor of 4(2m-n)
Y=-1/3x-1.
Hope this helps!
Answer:
The price is x = $2.779
Step-by-step explanation:
From the question we are told that
The revenue is ![y = - 20x^2 - 50 x + 200](https://tex.z-dn.net/?f=y%20%3D%20-%2020x%5E2%20%20-%2050%20x%20%2B%20200)
The cost of production is ![y = 30 x - 10](https://tex.z-dn.net/?f=y%20%3D%2030%20x%20-%2010)
Generally at break even point the cost of production is equal to the revenue
So
![-20x^2 -50x + 200 = 30x-10](https://tex.z-dn.net/?f=-20x%5E2%20-50x%20%2B%20200%20%3D%20%2030x-10)
=> ![20x^2 +20 -210 = 0](https://tex.z-dn.net/?f=20x%5E2%20%2B20%20-210%20%3D%200)
Using the quadratic formula to solve this equation we have that
x = $2.779
Answer:
25%
Step-by-step explanation:
ratio is 3B : 1G (this means, out of 4 sections, 3 are boys and 1 are girls)
this means that 3/4 of class is boys and 1/4 are girls
1/4 equals 25%