Problema Solution
If d=rt, what is the system of equations if Lisa arrives at her destination going 50 miles per hour and Keisha leaves an hour later than Lisa bit goes 60 miles per hour?
Answer provided by our tutors
d = the distance
r1 = 50 mph the rate of Lisa
r2 = 60 mph the rate of Keisha
t = the time of Lisa
t - 1 = the time of Keisha
d = r*t
r1*t = d
50t = d
r2*(t - 1) = d
60(t - 1) = d
the system of equations is
50t = d
60(t - 1) = d