sarah is cutting ribbons fow a pep rally. the length of each ribbon needs to be 3.68 inches if she needs 1000 ribbonn what is th
1 answer:
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Answer:
31 years to triple the investment
Step-by-step explanation:
Initial investment = 300
Triple amount that is final amount = 300*3= 900
rate of interest = 3.5 % = 0.035
we need to find out number of years (t)
for compounded continuously we use formula
A is the final amount
P is the initial amount
r is the rate of interest
t is the number of years
Divide both sides by 300
take 'ln' on both sides
ln(3) = 0.035t ln(e)
ln(e)= 1
t= 31.3889
Round to nearest whole number
t= 31 years
Answer:
Afful is 21 and Naomi is 13.
Step-by-step explanation:
Let represent the age of Afful and
represent the age of Naomi.
The sum of their ages is 34. In other words:
In 5 years time, Afful will be two times the age of Naomi <em>now</em>. In other words:
Solve for the system. Substitute.
Afful is currently 21 and Noami is currently 13.