Final answer:
To find the final length of Mamie's fabric after trimming and adding a lace border, we subtract the damaged length from the original length and then add the length of the lace. The fabric goes from 22 inches to 19.85 inches after trimming and finally to 20.23 inches with the lace added.
Step-by-step explanation:
When working with measurements for fabric, it is essential to consider the initial length, any amounts to be subtracted due to damage, and any additional lengths that will be added, such as lace or hems. In this mathematics question, Mamie buys a piece of fabric that is initially 22 inches long. Due to damage, she must cut away 2.15 inches, leaving her with a shorter piece of material. Then, to enhance the fabric, Mamie adds a lace border, which contributes an additional 0.38 inches to the overall length. To determine the final length of Mamie's material with the lace added, we perform a simple subtraction followed by addition.
First, subtract the length of the damaged section from the original length of the fabric, which can be computed as follows:
- Original length of fabric: 22 inches
- Damaged section to be removed: -2.15 inches
- Remaining length after removal: 22 - 2.15 = 19.85 inches
Next, we add the length of the lace border to the remaining length of the fabric:
- Length after removing damaged section: 19.85 inches
- Lace border to be added: +0.38 inches
- Total length after adding the lace: 19.85 + 0.38 = 20.23 inches
Therefore, the length of Mamie's material with the lace border added would be 20.23 inches.