Ahomemade dvd of a television series contains 20 episodes. the episodes are 55 minutes each, but contain commercials. if commercials take up
1
5
the time of each episode, how many hours of the television series are on the dvd?
a) 3
2
3
hours
b) 7
1
2
hours
c) 12 hours
d) 14
2
3
hours

the answer is su.k.my? ? co.kc

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