A pile of blocks has 60 blocks in the bottom row, 54 blocks in the second row, 48 blocks in the third row, and so on until there are only 6 blocks on the top row. How many blocks are in the 8th row? 10th row?
What is the answer on this Question? A pile or blocks has 60 blocks in the bottom row, 54 on the second, 48 on the third, and so on until there are only 6 blocks on the top row. How many blocks are there in the 9th row? How many blocks are in the pile?
Note that each row has 6 blocks less than the one before. So, row n has 60-6(n-1)=66-6n blocks.
Now just use your values of n.
To determine the number of blocks in each row, we can observe that the number of blocks in each row is decreasing by 6 each time.
We can start by finding the pattern using the number of rows. We can determine the number of blocks in a row using this formula:
Number of blocks in a row = (60 - 6 * (row - 1))
Using this formula, we can find the number of blocks in the 8th and 10th rows.
For the 8th row:
Number of blocks = 60 - 6 * (8 - 1)
= 60 - 6 * 7
= 60 - 42
= 18
Therefore, there are 18 blocks in the 8th row.
For the 10th row:
Number of blocks = 60 - 6 * (10 - 1)
= 60 - 6 * 9
= 60 - 54
= 6
Therefore, there are 6 blocks in the 10th row.