Answer:
35 years
Step-by-step explanation:
The proportion p that remains after y years is ...
p = (1/2)^(y/5.27)
In order for 1/100 to remain (the level decays from 100 times to 1 times), we have ...
.01 = .5^(y/5.27)
log(0.01) = y/5.27·log(0.5) . . . take logs
y = 5.27·log(0.01)/log(0.5) ≈ 35.01 ≈ 35 . . . . years
2x+5=x-8
-x on both sides
x+5=8
-5 on both sides
x=-13
Answer:
C
Step-by-step explanation:
9units sorry for not showing work though but glad I can help
Answer:
We need to know the other marbles in the bag and how many there are of each.
