To identify how much fabric Erica has left, we first need to clarify the total amount of fabric she purchased. Erica bought three pieces of fabric, each measuring twelve yards. Therefore, the total amount of fabric can be calculated as follows:
Total Fabric = Number of Pieces × Length of Each Piece
Total Fabric = 3 × 12 = 36 yards
Now, Erica used 23 yards of fabric to make a curtain. To find out how much fabric Erica has left, we subtract the amount she has used from the total she initially had:
Remaining Fabric = Total Fabric – Fabric Used
Remaining Fabric = 36 – 23 = 13 yards
In conclusion, after making the curtain, Erica has 13 yards of fabric remaining.