Answer: There are 2 decorations that Eli makes.
Step-by-step explanation:
Since we have given that
Length of a meter of ribbon used = [tex]\dfrac{1}{10}=\dfrac{1}{10}\times 100=10[/tex]
Length of a meter cut into equal pieces = [tex]\dfrac{1}{5}=\dfrac{1}{5}\times 100=20[/tex]
So, Number of decorations that Eli make is given by
[tex]\dfrac{\text{Length of total ribbon}}{\text{Length of ribbon used}}\\\\=\dfrac{20}{10}\\\\=2[/tex]
Hence, there are 2 decorations that Eli makes.