You and your friend wash cars to raise money for your school club. both of you can wash a certain car in 10 minutes when working together. your friend can wash the car alone in twice the time that you can wash the car alone. how many minutes do you take to wash the car alone?

Three friends went on a road trip from phoenix, az, to san diego, ca. mark drove 50 percent of the distance. jason drove 1/8 of the distance. andy drove the remainder of the distance. 1. andy thinks he drove 1/4 of the distance from phoenix, az, to san diego, ca. is andy correct? 2. the distance from phoenix, az, to san diego, ca, is 360 miles. how many miles did each person drive? 3. solve the problem. what is the answer in total?