Problema Solution
The sum of the speeds of two trains is 723.1 miles per hour. If the first train is 10.9 mph faster than the second train, find the speed of each
Answer provided by our tutors
let
v1 = the speed of the first train
v2 = the speed of the second train
the sum of the speeds of two trains is 723.1 miles per hour
v1 + v2 = 723.1
the first train is 10.9 mph faster than the second train
v1 = 10.9 + v2
by solving the system of equations
v1 + v2 = 723.1
v1 = 10.9 + v2
we find
v1 = 367 mph
v2 = 356.1 mph
click here to see the step by step solution of the system of equations