<u>Answer
</u>
After 12 years Emily's salary will be doubled
<u>Explanation
</u>
Here the salary increase can be considered as increase in the principle amount annually.
There are two methods to calculate the number of years.
1) 72 Rule
The rule state that, the number of years required to double the principle amount at given rate of interest, we just divide 72 by the interest rate.
In this problem Principle amount =$25,000 (in this rule no importance in principle amount)
Rate of interest, R = 6%
Number of years taken to double the amount = 72/6 =12 years
2)compound interest calculation method
P[1+R/100]^N = 2P
[1+ R/100 ]^N= 2
R is 6%, N is number of years
(1.06)^N =2
e^(ln(1.06^N)) = 2
e^N㏒(1.06)=2
N x ㏑(1.06) = ㏑(2)
N =㏑(2)/㏑(1.06) ≈11.8917 ≈ 12 years
Answer : Its $15
Step-by-step explanation:
Because thats the average price for a student.
I know its correct!!!
Answer:
figure it out from there
Step-by-step explanation:
11.20 x 2=22.40
14.40 x 3=43.20
22 + 43=65
.20 + .40= .80
65.80 - 55.80
Answer:
6√2
Step-by-step explanation:
So the diagonal of a square is equal to √2 times the length of the side of the square. Working backwards that would mean: 12/√2 = side of square
this means that the side of the square is 6√2
The side of the square is also the diameter of the circle.
I'm not sure this was the type of formula you're looking for but I hope it helped!