50 points! one algebra 2 question! (must show work) julia ran and bikes for a total of 40 miles in 5.8 hours. her average running speed was 5.5 mph. her average biking speed was 13.5 mph. let x = total hours julia ran ley y = total hours julia biked use substitution to solve for x and y. show all work. round answers to the nearest tenth. a) how many hours did julia run? b) how many hours did julia bike?