The unit that I would place in the numerator of my ratio is inches.
What is a linear equation?
"A linear equation is an equation in which the highest power of the variable is always 1."
Let, 40 centimeters is 'x' inches.
Given, 2.54 centimeters is equal to 1 inches.
Therefore, 1 centimeters is equal to [tex]\frac{1}{2.54}[/tex] inches.
Now, 40 centimeters is equal to
[tex]\frac{(40 centimeters)(1 inches)}{2.54 centimeters}[/tex]
= 15.748 inches
Learn more about a linear equation here: https://brainly.com/question/9462136
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