Christy drove at an average speed of 55 mi/h from her home in San Francisco to visit her sister in Tucson. She stayed in Tucson 10 hours, and on the trip back averaged 35 mi/h. She returned home 50 hours after leaving. How many miles is San Francisco from Tucson? a) Write an equation using the information as it is given above that can be solved to answer this question. Use t as your variable to represent the amount of time Christy spent driving from San Francisco to Tucson. Equation:
1 answer
(d / 55) + (d / 35) = 50 - 10
2 answers