2x + 3y = 40
+
-2x + 2y = 20
___________ Adding both equations
0x + 5y = 60
____________
5y = 60
y = 60/5 = 12
y = 12.
Since we have gotten y =12, and the only option with that is option D.
So we don't have to solve for x.
The answer is D.
We know that
[volume of a cylinder]=pi*r²*h
so
[volume of the half cylinder]=pi*r²*h/2
r=10/2-----> r=5 in
h=12 in
[volume of the half cylinder]=pi*5²*12/2----> 150*pi in³
the answer is
150*pi in3
Answer:
2x/5
Step-by-step explanation:
Answer:
33
Step-by-step explanation:
8b - 5r
Let b = 6 r = 3
8*6 - 5*3
48 - 15
33
Answer:
6 years
Step-by-step explanation: