9514 1404 393
Answer:
360
Step-by-step explanation:
Sam obtains a "contribution margin" of $0.50 -0.25 = $0.25 per cookie. That will cover the cost of baking supplies when he sells ...
$90 / ($0.25/cookie) = 360 cookies
Sam needs to sell 360 cookies before he can start making a profit.
_____
If you like, you can find Sam's break-even point by equating revenue and cost. The is the number of cookies Sam must sell for a profit of 0, that is, for non-negative profit.
P = R - C
0 = R - C
R = C
0.50n = 90 +0.25n
0.25n = 90 . . . . subtract 0.25n
n = 90/0.25 = 360 . . . .divide by the coefficient of n
You may notice this is similar to our description above.
Answer:
1, 2, 4, 5, 8, 10, 20, 40
Step-by-step explanation:
These number can all divide 40
Answer:
29x+8 is the answer
Step-by-step explanation:
12x-4+17x+8
=12x+17x-4+8
=29x+8
Hope it will help ^_^
Vertex is (-2,-3) and it's a minimum.
Answer:
Max exercises 13 hours a week, and Sasha 7.
Step-by-step explanation:
To find the number of hours each of them exercises during the week, we solve the system of equations.
In the second equation:
![x = 4y - 15](https://tex.z-dn.net/?f=x%20%3D%204y%20-%2015)
Replacing in the first equation:
![x + y = 20](https://tex.z-dn.net/?f=x%20%2B%20y%20%3D%2020)
![4y - 15 + y = 20](https://tex.z-dn.net/?f=4y%20-%2015%20%2B%20y%20%3D%2020)
![5y = 35](https://tex.z-dn.net/?f=5y%20%3D%2035)
![y = \frac{35}{5}](https://tex.z-dn.net/?f=y%20%3D%20%5Cfrac%7B35%7D%7B5%7D)
![y = 7](https://tex.z-dn.net/?f=y%20%3D%207)
So Sasha exercises 7 hours per week.
Max:
![x + y = 20](https://tex.z-dn.net/?f=x%20%2B%20y%20%3D%2020)
![x + 7 = 20](https://tex.z-dn.net/?f=x%20%2B%207%20%3D%2020)
![x = 13](https://tex.z-dn.net/?f=x%20%3D%2013)
Max exercises 13 hours a week.