Hector puts $150 into an account when the interest rate is 4 percent. later he checks his balance and finds he has about $168.73. how long did hector wait to check his balance?

3 years, 1 month, and 15 days.

Find time by using the formula

(I = P · i · t) where I is interest, P is total principal, i is rate of

interest per year, and t is total time in years.

In this problem I = $18.73 , P = $150 and i = 4%

start by isolating the variable on one side by adding 43w^2 to both sides.   the equation will read:

25w^2+5=0

*subtract 5 from both sides*

25w^2=-5

*divide both sides by 25*

w^2=-1/5

*take the square root of both sides*

w=√(-1/5)

the square root of -1 is i.   the square root of 5 remains √5

the answer is i/√5.

hope this

answer; windows embedded;