Answer:18
Step-by-step explanation: 50% of 12 is 6 which means that 12+6=18 and i believe that is the answer
Answer:
<h2>3000 pcs</h2>
Step-by-step explanation:
given:
the Length, breadth and height of a wall is 5m,30cm and 3 m
find:
how many bricks of dimensions 20cm ×10 cm× 7.5 cm are required to build the wall
solution:
vol of the wall = 5 x 3 x 0.30= 4.5 m³
vol per brick = 0.20 x 0.10 x 0.075 = 0.0015 m³
number of bricks = <u> wall volume </u>
vol. per brick
= 4.5 / 0.0015
= 3000 pcs of bricks required
Answer:
In mathematics, the intersection of two sets A and B, denoted by A ∩ B, is the set containing all elements of A that also belong to B (or equivalently, all elements of B that also belong to A).
Step-by-step explanation:
2x2 +3x -7 =x2 +5x +39
2x2 +3x -7 -x2 -5x -39=0
x2 - 2x -46 =0
(x-1)2 -46 -1 =0
(x-1)2 -47=0
(x-1)2 = 47
x-1= + or - the square root of 47
x= 1 + or - the square root of 47