I need help figuring this problem out

Question

Traci Lynn currently walks to school from her apartment, which is 1.3 miles away from her first class. She typically walks at a speed of 3 miles per hour. She is considering buying a used bicycle from Deseret Industries to ride to campus. Traci Lynn assumes that if she were riding a bike, she could go about 5 miles per hour.

 

How many minutes could Traci Lynn save getting to class each morning if she were to ride the bike?

(Round your answer to 2 decimal places)

Answer 1

she saves 10.4 minutes by biking instead of walking

it takes her 1.3/3 hours walking and 1.3/5 hours biking

d= rt

distance = rate of speed times time

t = d/r = 1.3/3 and 1.3/5

1.3/3 =.4333... hours walking

1.3/5 = .26 hours biking

this saves .17333.. hours time

convert to minutes

multiply by 60

.17333 x 60 = 10.4 minutes