Answer:
The decay rate is 5%.
Step-by-step explanation:
Let a substance is decaying at the rate of r% per hour from the initial value of P for t hours, then the final value of the substance is given by the function
........... (1)
Comparing this equation with the original equation given as
............ (2) we get,
⇒
⇒ r = 5%.
Therefore, the decay rate is 5%. (Answer)
Step-by-step explanation:

Answer:
2/3
Step-by-step explanation:
20% = 12
48
1/6 = 8
left = 40
40/60 = 4/6
4/6 = 2/3
Answer:
7 ft bRo
Step-by-step explanation:
wow i took 21 and divided it by three and i got SEVEN
how old are you like four
Answer: 196pi in.^2
Step-by-step explanation:
Divide the diameter by two.
You would get 14, then square it, you would get 196.