Irving lives in Appletown, and plans to drive along Highway 42, a straight highway that leads to Bananatown, located 109 miles east and 24 miles north. Carol lives in Coconutville, located 73 miles east and 49 miles south of Appletown. Highway 86 runs directly north from Coconutville, and junctions with Highway 42 before heading further north to Durianville. Carol and Irving are planning to meet up at park-and-ride at the junction of the highways and carpool to Bananatown. Irving leaves Appletown at 8am, driving his usual 45 miles per hour. If Carol leaves leaves Coconutville at 9am, how fast will she need to drive to arrive at the park-and-ride the same time as Irving?