2007-05-25 19:18:42 · 6 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
b = 2 + 1/2 b
1/2b = 2
b = 4 kg
so 2bricks weigh 8 kg
2007-05-25 20:29:36 · answer #1 · answered by Anonymous · 0⤊ 0⤋
Let weight of 1 brick = b kg
b = 2 + (1/2).b
(1/2).b = 2
b = 4
Weight of 2 bricks = 8 kg
2007-05-26 04:10:13 · answer #2 · answered by Como 7 · 0⤊ 0⤋
Same answer as the one above, but simpler math:
One brick = 2x
2x = 2 + x
-x -x
x=2
2x=4
One brick = 4 kg
Two bricks = 8 kg
2007-05-26 02:46:58 · answer #3 · answered by Tha Nurd 3 · 0⤊ 0⤋
X=Brick
X=2k/g+0.5X==>X=4
means 1 brick is 4Kg.
2*4=8
So....
2 bricks are 8Kg
2007-05-26 02:36:58 · answer #4 · answered by Mehdi 3 · 1⤊ 0⤋
Is this real homework or are you just putting us on.
The answer is 8 kg of course.
2007-05-26 02:27:25 · answer #5 · answered by cattbarf 7 · 1⤊ 0⤋
2.66kg
2007-05-26 02:27:57 · answer #6 · answered by Bill O 5 · 0⤊ 3⤋