Question

The running time of a TV episode is 30-0.5c,where c is the number of commercials aired during the episode. What is the running time of an episode with 15 commercials.

Answer 1

Total running time is 22.5

Explanation:

The running time of TV episode is given by,

, where c is the number of commercials.

now it is given that number of ads are 15.

Inserting the value of 15 as c in the equation,

Thus the total running time is 22.5

Explanation:

Answer 2

Total running time is 22.5

Explanation:

The running time of TV episode is given by,

`30-0.5c` , where c is the number of commercials.

now it is given that number of ads are 15.

Inserting the value of 15 as c in the equation,

=
`30-0.5(15)`

=
`30-(7.5)`

=
`22.5`

Thus the total running time is 22.5