A certain forest covers an area of 3100. Suppose that each year this area decreases by 4.75% . What will the area be after 7 yea
rs?
2 answers:
9514 1404 393
Answer:
2205
Step-by-step explanation:
The area is multiplied by 1-4.75% = 0.9525 each year. After 7 years, the multiplication factor is 0.9525^7. Then the area is predicted to be ...
3100 × 0.9525^7 ≈ 2205
Answer:
Step-by-step explanation:
This can be represented as exponential decreasing function.
y = a(1 - r)t
a = starting amount
r = rate
t = years
y = 1600(1 - .0725)15
= 1600(.9275)15
= 1600(.32337673)
= 517.40
In 15 years, the forest will shrink in size to 517.40 km2
You might be interested in
Answer:
50 liters
Step-by-step explanation:
If x is the volume of 20% acid, then:
x (0.20) + 20 (0.45) = (x + 20) (0.30)
0.2x + 9 = 0.3x + 6
3 = 0.1x
x = 30
30 liters of 20% acid are needed, so there will be a total of 50 liters of 30% acid.
No the solution should only be X=1
Answer:
-130.8
Step-by-step explanation:
The average of the two slope values is ...
(-148.8 -112.8)/2 = -261.6/2 = -130.8
The slope of the tangent line at t=15 is approximately -130.8.
Answer: B.
18 + 46 = 60
A. 3(6+14) = 48
B. 6(3+7)= 60
C. 3(6x14)= 252
D. 6(3x7)= 126
I’m happy to help :) !
H,w,y
Hope this helps and good luck and happy holidays
