Let's say the savings in your account are given by $V, the number of weeks by n and the starting balance by $x:
V = x + 200n
Now if after saving for 4 weeks you have $1700 in your account, then:
1700 = x + 200*4
1700 = x + 800
x = 900, thus your starting balance is $900
Using this information we can now write up the general equation for the savings at the end of each week:
V = 900 + 200n
Step-by-step explanation:
Draw a dotted line from b to e
as I've done
you will realize that abfe is a rectangle ,and bced is a trapezium
Area of abfe
=LW
=13ft(10ft)
=130ft^2
Area of bced
=1/2(sum of // sides )height
=1/2(eb+cd)h
h=16ft-10ft
h=6ft
A=1/2(13ft+6ft)×6ft
=19ft(3ft)
=57ft^2
Total areal =(57+130)ft^2
=187ft^2
Answer:
x = 8
Step-by-step explanation:
4x + 112 = 9x + 72
-112 -112
4x = 9x - 40
-9x -9x
-5x = -40
----- --------
-5 -5
x = 8
Answer:
Following are the answer to this question:
Step-by-step explanation:
Given:
n = 30 is the sample size.
The mean
= 7.3 days.
The standard deviation = 6.2 days.
df = n-1

The importance level is
= 0.10
The table value is calculated with a function excel 2010:

The method for calculating the trust interval of 90 percent for the true population means is:
Formula:


It can rest assured that the true people needs that middle managers are unavailable from 5,37 to 9,23 during the years.