coral invested $500 in an account that earns simple interest at the rate of %5.5 each year. Assuming coral does not invest anymore money it will take how many years for coral to have %720 in her account?

The number of years it will take coral to have $720 in her account is 8 years

Step-by-step explanation:

The principal amount coral invested, P = $500

The simple interest rate earned per year, r = 5.5%

The amount in coral account after t years, A = $720

The formula for simple interest is given as follows;

The formula for amount, A = SI + P

Therefore, we have;

22000 = 500 × 5.5 × t

t = 22000/(500 × 5.5) = 8

The number of years, t, it will take coral to have $720 in her account = 8 years.

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the answer is:

the answer is:

to solve the problem, we need to remember the quotient of power property, it's defined by the following relation:

if we have a quotienf of powers that have the same base, we need to keep the same base and subtract the exponent of the denominator power to the exponent of the numerator power.

so, we are given the expression:

then, calculating we have:

hence, the answer is:

have a nice day!