1200 dollars is placed in an account with an annual interest rate of 7.75%. To the nearest year, how long will it take for the account value to reach 8200 dollars?

The time required is about 75 years 3 months

Step-by-step explanation:

We know that the simple interest is expressed as

A = P (1 + rt)

A=final amount =$8200

P=initial principal

: balance=$200

r=annual interest rate 7.75%

7.75/100= 0.0775

t=time (in years)

Substituting our data into the expression we have

8200= 1200(1+0.0775*t)

8200=1200+93t

93t= 8200-1200

93t= 7000

t= 75.27

The time required to get a total amount, principal plus interest, of $8,200.00 from simple interest on a principal of $1,200.00 at an interest rate of 7.75% per year is 75.27 years (about 75 years 3 months)

0.6, 3/5, and 6% are the 3 same portion.

but, when they're all changed to a decimal they would equal to 0.6.

hope this , good luck!