Find the amount accumulated after investing a principle p for t years at an interest rate compounded k times per year.
p= $3,350 r=6.2% t=8 k=1
(hint: a=p(1+r/k)^kt

Step-by-step explanation:

Since we have given that

Principle of investment= $4300

Interest rate = 6.2% p.a

So, the interest made is given by

The error was that Mara divided 6.2 by 10 instead of dividing by 100.

So, she made a mistake.

Error margin is given by

Hope this helps >3

75 tickets have been sold so far.

step-by-step explanation:

in this question it is clearly mentioned that 45 children's tickets have been sold and this number is 60% of the total tickets sold.

now let's assume the total number of tickets sold be x.

then 60% of x = 45

⇒

⇒ x(.6) = 45

by dividing with .6 on both the sides of the equation

⇒ x = 75

therefore 75 tickets have been sold so far.