Answer:
Total cost = f + ad
Step-by-step explanation:
Given:
Number of days = d
Fixed charges = f
Cost per day = a
Find:
Equation
Computation:
Total cost = fixed cost + (Number of days)(Cost per day)
Total cost = f + ad
X-intercept can be found when y=0
y-intercept can be found when x=0
Plug in x=0 to find the y-intercept
-3(0) + 4y = -12
4y = -12
y = -3
Plug in y=0 to find the x-intercept
-3x + 4(0) = -12
-3x = -12
x = 4
The x-intercept is (4,0)
The y-intercept is (0, -3)
Answer: it will take 18.2 years
Step-by-step explanation:
We would apply the formula,
y = ab^t
Where
a represents the initial amount of bacteria.
t represents the doubling.
From the information given
a = 10
t = 1 hour
Since after 1 hour, the amount of bacteria multiplies by 2, then
y = 2 × 10 = 20
Therefore
20 = 10 × b^1
Dividing through by 10, it becomes
2 = b
The equation becomes
y = 10(2)^t
For 3,000,000 bacteria, then
3000000 = 10(2)^t
3000000/10 = (2)^t
300000 = (2)^t
Taking log of both sides, it becomes
Log 300000 = tlog2
5.477 = 0.301t
t = 5.477/0.301
t = 18.2 years
Answer:
15.47
Step-by-step explanation:
Since the four is in the hundrenths place you use the digit to the right of it, and if the number is greater than 5 you add one more. Thus the answer being 15.47
Answer:
-5.3
Step-by-step explanation:
I'm not really sure if thats the answer but i try