There will be 9 students left at the prep rally after 2 hours.
After 30 minutes
- Total Number of students = 729
- 2/3 of 729 = 486
- Number of students left = 729 - 486 = 243
After 1 hour:
- 2/3 of 243 = 162
- Number of students left = 243 - 162 = 81
After 1 hour 30 minutes :
- 2/3 of 81 = 54
- Number of students left = 81 - 54 = 27
After 2 hours :
- 2/3 of 27 = 18
- Number of students left = 27 - 18 = 9
Therefore, the Number of students left after 2 hours will be 9.
Learn more : brainly.com/question/18112348
Answer:
6156/7600=0.81 1-0.81= 0.19 THERE IS A 0.19% decrease in the number of finishers
Brainliest?
Step-by-step explanation:
It's D. a, b, and c refers to the coefficients of the numbers.
Answer:
5.1% (nearest tenth)
Step-by-step explanation:
<u>Annual Compound Interest Formula</u>

where:
- A = final amount
- P = principal amount
- r = interest rate (in decimal form)
- t = time (in years)
Given:
- A = $2,209
- P = $2,000
- t = 2 years
Substitute the given values into the formula and solve for r:







Therefore, the annual interest rate is 5.1% (nearest tenth)