Final answer:
Rita's quilt, after subtracting the 4-inch borders from each end of its 74-inch length, has 66 inches available for blocks. With each block having a side of 6 inches, dividing 66 by 6 yields 11 blocks running up and down the length of the quilt.
Step-by-step explanation:
Calculating the Number of Quilt Blocks
To answer the question of how many blocks run up and down the length of Rita’s quilt, we need to consider the total length of the quilt and the width of the border. The quilt is 74 inches long and there is a border of 4 inches all the way around. This means there is a 4-inch border on each end of the quilt’s length, which we have to subtract from the total length to find the length available for the blocks.
- Start with the total length of the quilt which is 74 inches.
- Subtract the width of the borders from the length (4 inches on top and 4 inches on bottom), so 74 - 4 - 4 = 66 inches.
- Each block has a side length of 6 inches. To find the number of blocks, divide the length available for the blocks by the side length of one block: 66 ÷ 6 = 11.
Therefore, there are 11 blocks that run up and down the length of the quilt.