Let
x--------> the border’s length
y--------> the border’s width
P--------> perimeter of the border
we know that
x=5+y------> equation 1
P=2*[x+y]-----> P=2x+2y
P <=180 ft
(2x+2y) <= 180-------> equation 2
substitute the equation 1 in equation 2
2*[5+y]+2y <= 180
10+2y+2y <= 180
4y <= 180-10
4y <=170
y <=42.5 ft
so
the maximum value of the width is 42.5 ft
for y=42.5 ft
x=42.5+5------> x=47.5 ft
the answer is
the width of the border is less than or equal to 42.5 ft
11/15 because 3/5 converts to 9/15 so 9/15+2/15=11/15
We need to solve for the radius
circumference = radius * 2 * PI
radius = circumference / (2*PI)
radius = 4.5 / (
<span>
<span>
<span>
6.2831853072
</span>
</span>
</span>
)
radius =
<span>
<span>
<span>
0.7161972439
</span>
</span>
</span>
feet
Formula for cylinder volume:
<span>Volume = </span><span>π • r² • height</span>
Volume = <span>π • (</span><span>
<span>
<span>
0.7161972439)^2 * 12
</span></span></span>Volume = PI * <span><span>0.5129384922
</span>
* 12
Volume </span><span><span><span>19.3373255857
</span>
cubic feet
</span> </span>
Answer:
38.29 i think
Step-by-step explanation:
