Answer:
11 yards
Step-by-step explanation:
The volume of a cone formula is:
Where V is the volume,
r is the radius (half of diameter)
h is the height
Given,
h = 15
V = 475.17
We find the radius (r) first by substituting given values:
The radius (r) is 5.5 yards
We need the diameter, which is DOUBLE THE RADIUS, so diameter would be:
Diameter = 5.5 * 2 = 11 yards
Multiply -3[4x+y=6].
This gets you -12x-3y=-18.
Add the two equations together to eliminate the y.
-12x - 3y = -18
+ 12x + 3y = 18
------------------------
0 = 0
This means that these are in fact the same line, therefore there are infinite solutions.
x = # of weeks
y = total amount of money
Your savings account: $122 + $12x = y
Your friend's savings account: $92 + $17x = y
As the question suggests, we need to set both equations equal to each other.
$122 + $12x = $92 + $17x
Subtract $92 from both sides and subtract $12x from both sides.
$30 = $5x
Divide both sides by $5
6 = x
It will take 6 weeks for you and your friend to have the same balance.
