Answer:
Step-by-step explanation:
Since the tanks are congruent, they both have same volume.
If you rejoin them, it will form a cylinder with the radius of 15 ft and height of 120 ft.
<u>The volume of the cylinder:</u>
- V = πr²h = 3.14*15²*120 = 84780 ft³
<u>The volume of each tank is half the volume of the cylinder:</u>
- V(tank) = 84780 / 2 = 42390 ft³
The numbers are "x" and "y",
we suggest this system of equations.
x+y=24
x-y=15
solve by reduction method.
x+y=24
x-y=15
-----------------
2x=39 ⇒x=39/2=19.5
x+y=24
-(x-y=15)
-------------------
2y=9 ⇒y=9/2=4.5
The numbers are 19.5 and 4.5
To check
19.5+4.5=24
19.5-4.5=15
Answer:
Area=91 ft^2
Step-by-step explanation:
Area=length*width
Area= 14*6.5
Area=91 ft^2
Answer:
Cos x
Step-by-step explanation:
