The correct answer is A: $3135.84
To find the total balance on the account all we need to do is use the compound interest formula.
It would be:
y = 5000(1 + 0.0325/12)^(15*12)
Evaluating this will give you a total of 8135.84
Now, just subtract off the original 5000 and you have the amount of interest.
8.
Adding four and subtracting one is the same as adding three. So, to see if a number can be in this pattern, subtract five and check if the result is a multiple of three. If it is, it can be in the pattern.
Fun fact: to check if something is a multiple of three, add all the digits up and see if that is a multiple of three. If you don’t know, repeat the process of adding the digits.
Assuming the inteest is annual, since it's simple that means we just have to analyze:
, where r is our interest rate as a decimal, t is time, p is our principal investment and A is our ending value. So, in the context of our problem this becomes:
, which when evaluated by our trusty calculator becomes:
7657.68938,
which is rounded to 7500 in the problem.
Answer:y= 4x+2
Step-by-step explanation: