Use the given values in the compound interest formula to solve for time, n.
A is the final amount of money, $2800
P is the initial or starting amount $1900
i is the interest rate as a decimal 0.025
n is time in years since it annual.
2800 = 1900(1 + 0.025)^n
2800 = 1900(1.025)^n
2800/1900 = (1.025)^n
28/19 = (1.025)^n
take the natural log of both sides to solve for exponent.
ln(28/19) = ln(1.025^n)
power rule of logarithmic moves exponent
ln(28/19) = n*ln(1.025)
ln(28/19) / ln(1.025) = n
put into a calculator
15.7 years = n
Answer:
3.1463
Step-by-step explanation:
root 2 plus root 3
√2 + √3= 1.4142 + 1.7321= 3.1463
this is close to the value of π
Answer:
Step-by-step explanation:
2a-5a = -3a, combine like terms
-3a = -3a , this is true all the time so ...
The equation 2a-5a = -3a has infinite many solution.