Let
x-----------> t<span>he first side
</span>y-----------> the second side
z----------> the third side
we know that
x+y+z=747------> equation 1
x=y-45------> equation 2
z=2x-----> equation 3
substitute 3 in 1
x+y+[2x]=747-------> 3x+y=747--------> equation 4
resolve the system of equation 2 and equation 4
x=y-45
3x+y=747
using a graph tool
see the attached figure
the solution is
x=175.5 m
y=220.5 m
z=2x-----> z=2*175.5------> z=351 m
the answer isx=175.5 my=220.5 mz=351 m
If we let
x as the length of the pen
y as the width of the pen
The area is
xy = 2000
The perimeter is
P = 2(x+y)
From the area
y = 2000/x
Substituting
P = 2(x + 2000/x)
which is the equation used to find the least amount of fencing possible.<span />
Answer:
4ft 1
Step-by-step explanation:
Because the expressions x and y² varies inversely, the equation that can be used in order to relate them is,
y² = k/x
k here is the constant of proportionality. Using the first set of given, x = 4 and y = 10, we determine the value of the proportionality constant.
k = (x)(y²)
Substitute the known values to the equation,
k = (4)(10²) = 400
The completed equation for the relation is therefore,
y² = 400/x
Substituting the value of y to this equation,
(2²) = 400/x
The value of x is 100.
<em>ANSWER: D. x = 100</em>