There are four movies showing at the theater, 2/5 of the people bought tickets for the comedy, 1/4 bought tickets for the horror movie and 3/10 bought tickets to the kids movie. What fraction represents the number of people who bought tickets for the action movie?

Given:

Number of people bought tickets for comedy =

Number of people bought tickets for horror =

Number of people bought tickets for kids movie =

To find the number of people who bought tickets for the action movie.

Let us take,

Total number of tickets = 1

Now,

Total number of tickets for comedy, horror and kids movie are =

So,

LCM of 5,4,10 = 20

=

=

Rest are action movie's tickets.

Therefore,

Number of action movie tickets =

=

=

Hence,

The number of people who bought the tickets for action movie is .

for this case we have by definition, if two lines are perpendicular, then the product of their slopes is -1.

then, given the following line:

so,

we are looking for m_ {2}:

then, the line is given by:

we find "b" replacing the given point:

finally, the equation is:

option c

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