Two trains leave the station at the same time one heading east one heading west. the eastbound train travels at 85 miles per hour. the westbound train travels at 105 miles per hour. how long will it take for the two trains to be 456 miles apart

 Train1 = 85 mph

Train 2 = 105mph

85+105 = 190 mph combined speed

Time = distance/ speed

Time = 456/190 = 2.4 hours = 2 hours and 24 minutes

none.

step-by-step explanation:

m

1

=

5

m1=5

b

=

−

1

b=-1

find the slope and y-intercept of the second equation.

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m

2

=

0

m2=0

b

=

−

6

b=-6

compare the slopes

m

m of the two equations.

m

1

=

5

,

m

2

=

0

m1=5,m2=0

compare the two slopes in the decimal form. if the slopes are equal, then the lines are parallel. if the slopes are not equal, then the lines are not parallel.

m

1

=

5

,

m

2

=

0

m1=5,m2=0