MATH SOLVE

2 months ago

Q:
# A train traveling 50 mph left a station 30 minutes before a second train running at 55 mph. If 55x represents the distance the faster train travels, which of the following algebraic expressions represents the distance of the slower train? 50(x + 0.5) 50(x-0.5) 50(0.5-x)

Accepted Solution

A:

Equation:

distance = distance

50x = 55(x-(1/2)

50x = 55x - (55/2)

-5x = -55/2

x = 11/2

x = 5 1/2 hrs (time at which the 2nd train overtakes the 1st train)

distance = distance

50x = 55(x-(1/2)

50x = 55x - (55/2)

-5x = -55/2

x = 11/2

x = 5 1/2 hrs (time at which the 2nd train overtakes the 1st train)