You plan to construct a brick wall measuring 4.5 m in length, 1.2 m high, and 0.5 m in width. If a brick measures 20 cm x 9 cm x 5 cm, how many bricks will you need?
Total volume (to the nearest tenth) = ________ cubic meters. The number of bricks =_________ .
volume of wall is 2.7
vol of each brick= 900
900,000,000
Is that how many bricks? Sounds like alot. Am I missing a step
got it. thanks again
:-) You're welcome.
a baseball measures 2 11/16 inches in diameter. What is its volume ( to the nearest hundredth )
To find the total volume of the brick wall, we can multiply the length, height, and width of the wall:
Total volume = length × height × width
= 4.5 m × 1.2 m × 0.5 m
= 2.7 cubic meters
Now, let's calculate the volume of a single brick:
Volume of a brick = length × height × width
= 0.2 m × 0.09 m × 0.05 m
= 0.0009 cubic meters
To find the number of bricks needed to construct the wall, we can divide the total volume of the wall by the volume of a single brick:
Number of bricks = Total volume ÷ Volume of a brick
= 2.7 cubic meters ÷ 0.0009 cubic meters
= 3000 bricks
So, the total volume of the wall is 2.7 cubic meters, and you will need 3000 bricks.
First find the volume of the wall.
V = LWH
Find the volume of each brick.
Then convert that to cubic centimeters.
1 cubic meter = 1 000 000 cubic centimeters
Right -- the volume of the wall is 2.7 cubic meters = 2,700,000 cubic centimeters
Each brick's volume is 900 cubic centimeters.
Here's your mistake. You need to divide, not multiply.
2,700,000 / 900 = 3,000 bricks