Answer:
55.6%
Step-by-step explanation:
1. The difference between 45 and 70 is 70-45=25 (If it is postive is an increase, if negative a decrease)
2.The base of comparison is the original number: 45
3. With both, you divide the difference with the base:
25/45 and you multiply it by 100 to get a %
4. Equation: ((70-45)/45)*100 = 55,55555555555
5. Rounded to the nearest above: 55,6%
It cannot be simplified, it is already reduced its broken down into lowest terms .
Answer:
The value of the investment after 20 years is $43,408.30
Step-by-step explanation:
In this question, we are asked to use an exponential function to calculate the future value of an investment that has a yield rate of 12% per year.
Mathematically, the exponential function can be modeled as follows;
FV = I( 1 + r)^t
where Fv is the future value we are trying to calculate
I is the initial amount invested which is $4,500
r is the increment per year which is 12% and this is same as 12/100 = 0.12
this the number of years we expect the investment to run which is 20.
Plugging these values, we have;
Fv = 4500( 1 + 0.12)^20
Fv = 4500(1.12)^20
Fv = $43,408.32
This is same as $43,408.30 to the nearest cent
Answer:
Step-by-step explanation:
4. use 3x-y=0; add y left n right, y=3x; substitute to solve
6. use x+y=8; subtract y left n right, x=8-8; substitute to solve
8. use x-2y=-6; add 2y left n right, x=-6+2y; subtitute to solve