Seudónimo Seudónimo 23-02-2017 Mathematics contestada d = miles at a speed. r = miles per hour. Equation: t = 0.5 + d/r Question: If they average 50 miles per hour, how long did it take the Doyles to travel 240 miles? Show work and please explain. a) 4.7 hours b) 4.8 hours c) 4.9 hours d) 5.3 hours