Solve for n by simplifying both sides of the equation, then isolating the variable
n=9
Answer:
Step-by-step explanation:
the first one
Answer:
A. 220 miles
Step-by-step explanation:
You can multiply to find the answer. 5.5 times 40 = 220 miles.
Answer:
7.87 years
Step-by-step explanation:
#First we determine the effective annual rate based on the 9% compounded semi annual;

#We then use this effective rate in the compound interest formula to solve for n. Given that the principal doubles after 2 yrs:

Hence, it takes 7.87 years for the principal amount to double.