Using the relationship that speed=distance/time, and the information on the return trip, a rational equation that can be used to solve for speed is

Question

. The least common denominator is
, and multiplying both sides by the least common denominator gives an equivalent equation of
. Write the solution to this equation as a decimal:
miles per minute.

Answer 1

The rational equation that can be used to solve for speed is "speed = distance / time".
The least common denominator is "1".
Multiplying both sides of the equation by the least common denominator gives an equivalent equation: "speed = (distance / time) * 1".
The solution to this equation, written as a decimal, is "miles per minute".