Compound interest formula
P = the principal (the initial amount)
r= annual
interest rate (
expressed
as a decimal)
expressed
as a decimal)
annual
interest rate (
expressed
as a decimal)
n=
number of
interest periods
per year
(see the
table below
for more information)
t=
number of years
P is invested
A=amount after t
years
If investment interest rate is
compounded monthly
, then n = 12
If investment interest rate is
compounded quarterly
, then n = 4
If investment interest rate is
compounded semi-annually
, then n = 2
If investment interest rate is
compounded annually
, then n = 1
Answer:
Each sister will have to pay $8.50
Step-by-step explanation:
17/2=?
16/2=8
so, add 0.5 to 8 and you get 8.5
The value of x is greater than 8 but less than 12
<h2>
Explanation:</h2><h2>
</h2>
The volume of a cone can be found as:
Given the radius and height, we can find the volume of the cone:
The volume of a sphere is:
So, for each gum ball the volume is:
Therefore, the he closest approximation of the volume of the cone that can be filled with flavored ice is:
Conclusion: The volume of the cone that can be filled with flavored ice is 4.43 cubic inches.
7x + 3y = 30
-2x + 3y = 3....multiply by -1
-----------------
7x + 3y = 30
2x- 3y = -3 (result of multiplying by -1)
----------------add
9x = 27
x = 27/9
x = 3
7x + 3y = 30
7(3) + 3y = 30
21 + 3y = 30
3y = 30 - 21
3y = 9
y = 9/3
y = 3
solution is (3,3)
