1st month: $100 + 40 = 140 | 400 + 20 = 420
2nd month: 180 | 440
3rd month: 220 | 460
4th month: 260 | 480
5th month: 300 | 500
After five months, the distance between the amount of money saved has decreased by $100. 5 x 3 = 15, therefore the amount of money saved will be the same after 15 months.
Hope this helps!
Ash
Answer:
3x+4y=16
3x=-4y+16 (Subtract both sides by 4y)
x=-4/3y+16/3 (Divide both sides by 3 to isolate x variable)
Answer:
Step-by-step explanation:
we know that
A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form 
or 
Let
x -----> the amount of weight
y ----- the amount a spring will stretch
we know that
For x=80 lb, y=2.1 in
<em>Find the value of k (constant of proportionality)</em>
substitute the values
The linear equation is
How far will it stretch when 40 pounds is attached?
For x=40 lb
substitute the value of x in the linear equation and solve for y
4/3 times 4 = 16/3
10 2/3 divided by 16/3=2
8 times 2 = 16
the height of the hay bale pile is 16 feet
Answer:
h = 4cm
Step-by-step explanation:
Diameter = 18cm
Radius = Diameter/2 = 18/2 = 9cm
V = 1/3*pi*r^2*h
We know that the volume is 108pi cm^3. We can just plug in 108pi cm^3 for V and we also know that our Radius (r) is 2.
So,
108 pi = 1/3*pi*9^2*h
108 pi = (81pi*h)/3
multiply 3 from both side
108pi*3 = (81pi*h)/3 *3
324pi = 81pi*h
Now divide the 81pi from both side
324pi/81pi = (81pi*h)/81pi
4 = h
So the height is 4cm
