Answer:
15
Step-by-step explanation:
The calculation is:
endamount - startamount divided by number of days.
(237-27) / 14 = 15
Answer:
![Cost = 1 + 0.25y](https://tex.z-dn.net/?f=Cost%20%3D%201%20%2B%200.25y)
![Cost =3.25](https://tex.z-dn.net/?f=Cost%20%3D3.25)
Step-by-step explanation:
Given
![Base\ Amount = \$ 1](https://tex.z-dn.net/?f=Base%5C%20Amount%20%3D%20%5C%24%201)
of child's age
Solving (1):
Determine the cost function.
Represent the years as y.
So, we have:
* y
Convert 25 cents to dollars.
![25 cents = 25 * \$0.01](https://tex.z-dn.net/?f=25%20cents%20%3D%2025%20%2A%20%5C%240.01)
![25 cents = \$0.25](https://tex.z-dn.net/?f=25%20cents%20%3D%20%5C%240.25)
So, we have:
![Additional = \$0.25 * y](https://tex.z-dn.net/?f=Additional%20%3D%20%5C%240.25%20%2A%20y)
The cost amount is then:
![Cost = Base\ Amount + Additional](https://tex.z-dn.net/?f=Cost%20%3D%20Base%5C%20Amount%20%2B%20Additional)
--- This is the cost function
Solving (b): Cost of 9 years old.
In this case;
![y = 9](https://tex.z-dn.net/?f=y%20%3D%209)
Substitute 9 for y in ![Cost = 1 + 0.25y](https://tex.z-dn.net/?f=Cost%20%3D%201%20%2B%200.25y)
![Cost =1 + 0.25 * 9](https://tex.z-dn.net/?f=Cost%20%3D1%20%2B%200.25%20%2A%209)
![Cost =1 + 2.25](https://tex.z-dn.net/?f=Cost%20%3D1%20%2B%202.25)
--- This is the cost for a child of 9
Answer:
The velocity is the speed in a given direction hence the units are the same as that of speed, m/s. Thus the answer is 30 m/s.
Step-by-step explanation:
I do not understand the second option.
Step-by-step explanation:
we need to find the number n of sold boxes, so that the income (sales) and costs (expenditures) are equal. this is called the break even point. any more boxes sold will then result in a profit, actually gaining money. and if she cannot reach that number of sold boxes, then she will make a loss.
so,
n×11 = n×3 + 24
n×8 = 24
n = 3
it will take 3 sold boxes of cards to break even.
at that point she will have spent $24 + 3×$3 = $33, and her sales will be 3×$11 = $33.