Answer:
Step-by-step explanation:
<u>Initial value of house:</u>
<u>Yearly increase rate of value:</u>
<u>Time </u>
Since the increase is concerning the current price it would be exponential growth.
<u>The function would be:</u>
- V(t) = 184000*(1 + 3.5/100)^t, where V is the value after t years
<u>For t= 13 we get:</u>
- V(13) = 184000*(1.035)^13 = 287800
<u>Profit made would be:</u>
Correct option is D.
Answer:
Step-by-step explanation:
a. This is a decay function, since the final value (A) gets smaller and smaller as the days pass by.
b. The bacteria is decreasing by 75% per day exponentially.
c. In order to calculate the amount of bacteria in a week we simply substitute the variable t for 7 (7 days in a week) and solve for A
A = 200(0.75)^7
A = 26.7 bacteria after 1 week
d. In order to calculate this we need to substitute the variable A with 100 and solve for t
100 = 200(0.75)^t ... divide both side by 200
0.5 = 0.75^t
= t
2.4 = t
It will be half the initial amount after 2.4 days.
Answer:
3/8
Step-by-step explanation:
3/10 ÷ 4/5
Copy dot flip
3/10 * 5/4
Rewriting
3 /4 * 5/10
3/4 *1/2
3/8
Answer:11
Step-by-step explanation:
just did this problem
D=57 and r=30, then by the formula d=r*t
57=30*t.
dividing 30 on both sides we get, t= 57/30
t=1.9