Answer:
23 weeks
Step-by-step explanation:
1. He has been saving for 161 days.
2. There are 7 days in a week.
3. Divide 161/7 to get an answer of 23 weeks.
The equation for compound interest is:
Where r is the interest rate and n is the number of times per year it's applied.
Annually n = 1 and 7% interest r = 0.07
The quarterly rate 2% is already quartered 0.02 = r/n .
You can see that Alexander is incorrect. A quarterly compound interest rate of 2% will accrue more interest than a 7% compound annual interest rate.
1.7% compound quarterly
Answer:
$12.40
Step-by-step explanation:
Because each of the students paid the same amounts, you just divide the total amount of money by the number of students there are, which is 21 and you get your answer of $12.40. hope this helps :)
Answer:
A
Step-by-step explanation:
300 minus 15 ( times each week that passed) would equal how much she owes
Step-by-step explanation:
- volume of cylinder=90π
- πr²h=90π
- 3²h=90
- 9h=90
- h=90/9
- h=10
hope it helps.