Formula of the daily compound interest:
A = P.e^(r.t), where P is the initial investment, r = interest rate, t = number of years e= 2.718 and A = final amount
6,225.18= 4,543.11(e)^(r.15)
(e)^(r.15) = 6,225.18/4,543.11
(e)^(r.15) = 1.3702046
ln[(e)^(r.15)] = ln(1.3702046)
15.r = 0.314991
And r = 0.314491/15 = 0.020 OR 2%
All really need to do is pick one number. so, we will go with 6 and 87.
6 times 12 is 72 then you subtract that from $87.
That would be 15
To double check, you can use another one. 9 and 123.
9 times 12 is 108. subtract that from 123 and you get 15.
Your answer is B) $15
Hope I helped :)
Answer:
area = 160 cm²
Step-by-step explanation:
area = (8x 4 x 4) + (4 x 4 x 2) = 160 cm²
4x - 5y = -12
-x + 5y = 18
Add the equations together:
4x + -x = 3x
-5y + 5y = 0
-12 + 18 = 6
So now you have:
3x = 6
Divide both sides by 3:
X = 2
Now you have the value of x, replace x with 2 in one of the equations and solve for y:
4(2) -5y = -12
8 -5y = -12
Subtract 8 from both sides:
-5y = -20
Divide both sides by -5:
Y = 4
The solution is x = 2 and y = 4 which is written as (2,4)
I don’t see a expression...
