Answer:
i- wow that's...interesting o-o
Step-by-step explanation:
Answer:
B
Step-by-step explanation:
The answer is C.
good luck!
Answer:
B) 190 cm^2
forgive me if I am wrong.
Given - Dimensions of brick - 30cm ×10cm ×7 1/2 cm
Dimensions of wall - 30cm long 2m high and 3/4m thick
Find - Number of bricks
Solution - The volume of both brick and wall will be calculated by the formula Length*breadth*height.
Volume of one brick = 30*10*15/2
Volume of one brick = 30*10*7.5
Volume of one brick = 2250 cm³
Now calculating volume of wall. Firstly converting height and thickness into centimetres.
Height = 2 metres
Height = 200 centimetres.
Thickness = 3/4 metres
Thickness = 75 centimetres
Volume of wall = 30*75*200
Volume of wall = 4,50,000 cm³
Number of bricks required = 450000/2250
Number of bricks required = 200
Thus, 200 bricks will be required for given wall.