Answer:
7/40 of his customers chose a natural finish
Step-by-step explanation:
Start by subtracting the fractal amounts from the whole, which is 1.
[tex]1-(\frac{1}{8}+\frac{4}{10}+\frac{3}{10})[/tex]
Next, add like-terms
[tex]1-(\frac{1}{8}+\frac{7}{10})[/tex]
Find a common denominator
[tex]1-(\frac{5}{40}+\frac{28}{40})[/tex]
Add inside parentheses
[tex]1-(\frac{33}{40})[/tex]
Recognize that 1 is equal to [tex]\frac{40}{40}[/tex]
[tex]\frac{40}{40}-\frac{33}{40}[/tex]
Solve to get 7/40. This cannot be simplified further.
