Answer:
The hummingbird beats its wings 86 400 times in one hour.
Step-by-step explanation:
There are 60 minutes in an hour. There are 60 seconds in a minute.
1h = 60m
= 60 × 60s
= 3600s
1s = 24 times
3600s = 24 × 3600
= 86 400 times
Answer:
n=7.87 years
Step-by-step explanation:
- The principal amount of $8000 doubles to become $16000.
-Given the rate is 9% compounded semi-annually, we first determine the effective rate:
We use this rate to in the compound interest formula to solve for n:
Hence, it takes 7.87 years for the amount to double to $16,000
Answer:
first question is 9 1/2 - 2nd answer
2nd question is 2nd answer 4 3/4 - ur correct
You would divide 530 and 50 to get ur answer of 10.6