16. Nasser has 904 building bricks. He used 477 to build a castle. Then he used 213 more building bricks he found in a storage box. How many building bricks were not used for the castle? Show your work. Use a letter to represent the unknown.

Question

16. Nasser has 904 building bricks. He used 477 to build a castle. Then he used 213 more building bricks he found in a storage box. How many building bricks were not used for the castle? Show your work. Use a letter to represent the unknown.

Answer 1

Let's represent the unknown number of building bricks that were not used for the castle with the letter "x".

We know that Nasser initially had 904 building bricks and he used 477 to build the castle.
So the number of building bricks that were not used for the castle is x = 904 - 477.
After finding 213 more building bricks, Nasser used a total of 477 + 213 = 690 building bricks.
Therefore, the number of building bricks that were not used for the castle is x = 904 - 690.
By calculating, x = 214.
So, there were 214 building bricks that were not used for the castle.

Answer 2

Let's use the letter 'x' to represent the unknown number of building bricks that were not used for the castle.

Nasser started with 904 building bricks.
He used 477 building bricks to build a castle.
So, the number of building bricks remaining after building the castle is: 904 - 477 = 427.

Then, Nasser found 213 more building bricks in a storage box.
Adding these additional bricks to the remaining bricks, we get: 427 + 213 = 640.

Therefore, the number of building bricks not used for the castle is 640 - x.

But we also know that the total number of building bricks Nasser had was 904.

So, we can set up the equation: 640 - x = 904.

To find x, we can subtract 640 from both sides of the equation: 640 - 640 - x = 904 - 640.

Simplifying the equation: -x = 264.
Multiplying both sides by -1 to solve for x: -1*(-x) = -1*264.

This gives us: x = -264.

Since we are looking for the number of building bricks, a negative value does not make sense in this context. Therefore, there are no building bricks left unused for the castle, as all of them (x = 0) were used.

Answer 3

To find out how many building bricks were not used for the castle, we can subtract the total number of bricks used from the total number of bricks Nasser has.

Nasser has 904 building bricks.
He used 477 to build a castle.
He found 213 more building bricks in a storage box.

To find the number of building bricks not used for the castle, we subtract the number of bricks used (477) and the number of bricks found (213) from the total number of bricks Nasser has (904).

Let's represent the unknown number of bricks not used for the castle with the letter "x".

The equation would be:
Total number of bricks - Bricks used for the castle - Bricks found = Bricks not used for the castle

904 - 477 - 213 = x

Performing the calculations:
904 - 477 - 213 = 214

Therefore, Nasser did not use 214 building bricks for the castle.

16. Nasser has 904 building bricks. He used 477 to build a castle. Then he used 213 more building bricks he found in a storage box. How many building bricks were not used for the castle? Show your work. Use a letter to represent the unknown.​

Let's represent the unknown number of building bricks that were not used for the castle with the letter "x".

Let's use the letter 'x' to represent the unknown number of building bricks that were not used for the castle.

To find out how many building bricks were not used for the castle, we can subtract the total number of bricks used from the total number of bricks Nasser has.

16. Nasser has 904 building bricks. He used 477 to build a castle. Then he used 213 more building bricks he found in a storage box. How many building bricks were not used for the castle? Show your work. Use a letter to represent the unknown.