Mr. Anders and Ms. Rich each drove home from a business meeting. Mr. Anders traveled east at 100 Kilometers per and hour and Ms. Rich traveled west at 80 kilometers per hour. In how many hours were they 100 kilometers apart?
D = 100 km/hr * t + 80 km/hr * t = 100
D = 100t + 80t = 100,
180t = 100,
t = 100 / 180 = 0.56 hours.
To find out how many hours they were 100 kilometers apart, we need to determine the time it takes for them to cover a combined distance of 100 kilometers.
Since Mr. Anders and Ms. Rich are traveling in opposite directions, their combined speed would be the sum of their individual speeds.
Mr. Anders' speed = 100 kilometers/hour
Ms. Rich's speed = 80 kilometers/hour
Therefore, their combined speed = 100 + 80 = 180 kilometers/hour.
To find the time it takes to cover a distance of 100 kilometers, we can use the formula:
Time = Distance / Speed
Plugging in the values, we get:
Time = 100 kilometers / 180 kilometers/hour
Time = 0.5556 hours (rounded to four decimal places)
Therefore, Mr. Anders and Ms. Rich were 100 kilometers apart after approximately 0.5556 hours, or about 33.33 minutes.