At 3: 00 p. m., jamie leaves her house and drives north to the beach. she arrives at 5: 30 p. m. also leaving at 3: 00 p. m., her brother raul leaves her house and drives south to a state park. he arrives at 4: 30 p. m. the driving distance from the beach to the state park is 240 mi. jamie and raul drove at the same speed. what was their speed?