SOLUTION: Sally left her home at 11 am travelling 30 mph. Her uncle Sy left the house at 1 pm and started on the same road at 45 mph. At what time did uncle Sy catch up with sally
Algebra ->
Customizable Word Problem Solvers
-> Travel
-> SOLUTION: Sally left her home at 11 am travelling 30 mph. Her uncle Sy left the house at 1 pm and started on the same road at 45 mph. At what time did uncle Sy catch up with sally
Log On
Question 909110: Sally left her home at 11 am travelling 30 mph. Her uncle Sy left the house at 1 pm and started on the same road at 45 mph. At what time did uncle Sy catch up with sally Answer by richwmiller(17219) (Show Source):
You can put this solution on YOUR website! 2 30 45 0 0
Gaining speed 45 -30= 15 mph
Headstart 30*2 =60 miles
Time to catch up 60/15=4 hours
Algebraic solution
30(t+2)=45t
30t+60=45t
60=45t-30t
60=15t
t=4 hours
Distance to meeting 4*45=180 miles
code drt1
