In order to solve this question, we need to compute the following operation:
[tex]2\frac{1}{2}yard\text{ - \lparen2feet+ 8inches\rparen}[/tex]
or equivalently,
[tex]\frac{5}{2}\text{ yards- \lparen2feet+ 8inches\rparen}[/tex]
However, we need to convert first the yards and feet to inches. Since 1 yard has 36 inches, we have
[tex]\begin{gathered} \frac{5}{2}\text{ yards=}\frac{5}{2}yard(\frac{36\text{ inches}}{1\text{ yards}}) \\ \frac{5}{2}\text{ yards=90 inches} \end{gathered}[/tex]
Similarly, since 1 feet has 12 inches, we get
[tex]\begin{gathered} 2\text{ feet = 2feet\lparen}\frac{12inches}{1feet}) \\ 2\text{ feet = 24inches} \end{gathered}[/tex]
Then, our first operation is equivalent to
[tex]90inches-(12inches+8inches)[/tex]
which gives
[tex]90-20=70inches[/tex]
Then, How many inches of ribbon did Anais use to trim the curtains? Answer: Anais used 70 inches of ribbon.
