Solve the following word problem.
A man travels from Town X to Town Y at an average rate of 60 mph and returns at an average rate of 50 mph. He takes
a 1/2 hour longer than he would take if he made the round trip at an average of 55 mph. What is the distance from Town
X to Town Y?
ao miles

Look at this system of equations. -3x + 3y = 12 y = x + 4 the solution set of this system is best explained by which of these statements? a) the graphs of the equations are the same line because the equations have the same slope and the same y-intercept. the system has infinitely many solutions. b) the graphs of the equations are parallel lines because they have the same slope but different y-intercepts. the system has no solution. c) the graphs of the equations are lines that intersect at one point because the equations have the same slope but different y-intercepts. the system has exactly one solution. d) the graphs of the equations are lines that intersect at one point because the equations have the same slope and the same y-intercept. the system has exactly one solution.