I'm pretty sure it should be the 45. or A
Answer: the value of her investment after 4 years is £8934.3
Step-by-step explanation:
The formula for determining compound interest is expressed as
A = P(1+r/n)^nt
Where
A = total amount in the account at the end of t years
r represents the interest rate.
n represents the periodic interval at which it was compounded.
P represents the principal or initial amount invested.
t represents the duration of the investment in years.
From the information given,
P = 8000
r = 2.8% = 2.8/100 = 0.028
n = 1 because it was compounded once in a year.
t = 4 years
Therefore,
A = 8000(1+0.028/1)^1 × 4
A = 8000(1+0.028)^4
A = 8000(1.028)^4
A = £8934.3 to the the nearest penny
2x - 6 = 14
Add 6 to both sides to isolate the x
2x = 20
Divide 2 to both sides since x is multipled to x
x = 10
To check your work plug 10 into the equation
2(10) -6 = 14
20 - 6 = 14
14 = 14
and it works
