Final answer:
1 foot is approximately 0.000189393939 miles when rounded to six decimal places. To calculate the trim needed for 5 desks, multiply 84 inches per desk by 5 to get 420 inches, which is equivalent to 35 feet.
Step-by-step explanation:
To determine how many miles are in 1 foot, one can perform the following calculation:
Since 1 mile is 5,280 feet, to find out how many miles are in 1 foot, we divide 1 by 5,280.
1 foot = \( \frac{1}{5280} \) miles
Therefore, 1 foot is approximately 0.000189393939 miles, when rounded to six decimal places.
For the second part, if one desk requires 84 inches of a type of trim, we can calculate the total length needed for 5 desks as follows:
5 desks x 84 inches/desk = 420 inches
To convert these inches into a potentially more useful unit, we use the equivalence that 1 foot equals 12 inches:
420 inches = 420 / 12 feet
420 inches is equivalent to 35 feet. This provides the total length of trim needed for 5 desks in both inches and feet.