Answer:
a) x/20
Explanation:
To know the number of inches, we need to use the given relationship.
Since 1/2 in is equivalent to 10 miles, we get that x miles is equivalent to:
[tex]x\text{ miles}\cdot\frac{\frac{1}{2}\text{ in}}{10\text{ miles}}=x\cdot\frac{1}{2}\cdot\frac{1}{10}=\frac{x}{20\text{ }}in[/tex]Therefore, the answer is x/20 inches.
