Answer :
Answer: She need 18 inches of ribbon for her project.
Step-by-step explanation:
Since we have given that
Length of ribbon = 60 inches
Part of ribbon cut off for an art project = 40%
So, Length of ribbon remains is given by
[tex]\dfrac{40}{100}\times 60\\\\=0.4\times 60\\\\=24\ inches[/tex]
Now, Part of piece she only needs from cut off = 75%
so, Length of ribbon she need end up using in her project is given by
[tex]\dfrac{75}{100}\times 24\\\\=0.75\times 24\\\\=18\ inches[/tex]
Hence, She need 18 inches of ribbon for her project.