Well, the formula for simple interest is
I = p r t
"I" is interest, "p" is the principal, "r" is the rate, and "t" is the time.
If you substitute the numbers, you get
I = 1 , 000 ( 0.06 ) ( 3.5 )
When you multiply them together, you get
I = 210
So, the simple interest for 3.5 years is $210.
But, in order to get the total balance, you have to add the interest and the principal together.
B = 1000 + 210 B = 1210
So, the balance after 3.5 years is $1,210.
$1210 ;
Sam deposits $1,000 into an account with 6% simple interest. After 3.5 years, the total interest earned is $210, making the balance in the account $1,210. Therefore, Sam will have $1,210 in his account after 3.5 years.
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