Bricks have a mass of 1.75kg each.How many bricks are there in 21/4tonnes?
First, we need to convert 21/4 tonnes to kilograms by multiplying by 1000:
21/4 * 1000 = 5250 kg
Next, we divide the total mass of bricks by the mass of one brick to find the number of bricks:
5250 kg / 1.75 kg/brick = 3000 bricks. Answer: \boxed{3000}.
To find out how many bricks are there in 21/4 tonnes, we need to convert the mass of the bricks to the same unit as the given mass.
Given:
Mass of 1 brick = 1.75 kg
Mass in question = 21/4 tonnes
First, let's convert the mass of the bricks to the same unit as the given mass, which is tonnes.
1 tonne is equal to 1000 kilograms. Therefore, 1.75 kilograms can be converted to tonnes as follows:
1.75 kg = 1.75/1000 tonnes
Next, let's convert the given mass to tonnes.
1 tonne is equal to 1000 kilograms. Therefore, 21/4 tonnes can be converted to kilograms as follows:
21/4 tonnes = (21/4) * 1000 kg
Now that both masses are in the same unit (tonnes), we can determine how many bricks are in the given mass by dividing the given mass by the mass of a single brick:
Number of bricks = (21/4 tonnes) / (1.75/1000 tonnes)
To simplify the calculation, let's multiply both sides by 1000:
Number of bricks = ((21/4) * 1000) / 1.75
Evaluating this expression will give us the final answer.
To determine the number of bricks in 21/4 tonnes, we need to convert the mass of the bricks and the total mass into the same unit.
Given:
Mass of each brick = 1.75 kg
Total mass = 21/4 tonnes
1 tonne = 1000 kg
Converting the total mass to kg:
21/4 tonnes * 1000 kg/tonne = 5250 kg
Now, we can calculate the number of bricks:
Number of bricks = Total mass / Mass of each brick
Number of bricks = 5250 kg / 1.75 kg
Number of bricks = 3000 bricks
Therefore, there are 3000 bricks in 21/4 tonnes.