Given:
The increase in pressure P is the linear function of the depth d.
The cost of dinner is $300 and $10 per students.
To find:
The initial value and rate of change and their interpretation.
Find the cost function C where n is the number of students.
Solution:
The slope intercept form of a linear function is
...(i)
where, m is rate of change and b is y-intercept or initial value.
We have,
...(ii)
From (i) and (ii), we get
The initial value is 14.7. It means, the pressure at sea level is 14.7 pounds psi.
Rate of change is 0.445. It means, the pressure is increasing by 0.445 pounds psi for every feet.
The cost of dinner is $300 and $10 per students.
Let C(n) be the total cost for dinner and n be the number of students.
Fixed cost = $300
Additional cost for 1 student = $10
Additional cost for n student = $10n
Now,
Total cost = Fixed cost + Additional cost
Therefore, the required cost function is .
Answer:
C, both methods save the same amount of money
Step-by-step explanation:
First, we need to calculate what each answer choice will equal.
For A, it asks us to add the sales tax and then take the discount off. So, to find out what the sales tax is equal to, we multiply 720 x 0.06 (because 6% is equal to 0.06).
720 x 0.06 = 43.2
Add the sales tax to the original amount and you get 763.2.
Now we take the discount, which is 25% or 1/4.
1/4 of 763.2 is 190.8.
Subtract the discount from the price and you get 572.4.
For B, it says to take the discount first and then add the sales tax.
25% = 1/4, so 1/4 of 720 is equal to 180.
Subtract 180 from 720, and you get 540.
Now add the sales tax.
540 x 0.06 = 32.4.
540 + 32.4 = 572.4.
The answer is C, both methods save the same amount of money!
<span>
28 11 points in 1 quarter because 44/4=11 which is 11/1</span>
685-85=600
1 year =12 months
12 multiply by 2 =24
600 divided by 24=25
answer=25
The length of would be 9 and the width 7, resulting in an area of 63
