the amount of simple interest is computed using the formula
i = prt
where i is the interest earned; p is the principal invested at rate r for time period t.
fill in the given information and solve for p.
$2625 = p·0.035·5
$2625/0.175 = p = $15,000
samuel deposited $15,000 in the account.
for this case we have a quadratic equation of the form:
its roots are given by:
by definition we know that:
we have two complex roots: