00:01
Hello, in this video i will be answering the following.
00:05
So let's go ahead and get started.
00:07
So first we're going to calculate the present value of expense on the natural gas.
00:13
So pv is equal to cash times 1 minus 1 plus g over 1 plus r over r minus g.
00:51
So now we just plug in our numbers.
00:55
So that's 8800 times 1 minus 1 plus 0 .10 over 1 plus 0 .18 to the 15th over 0 .18 minus 0 .10.
01:29
Which is 71624 .605.
01:41
So that's the first part.
01:44
And next we're going to calculate the pv of maintenance cost.
01:49
So future, you would take your future value, you would get your future value equal to your present value.
02:00
So future equals present value times 1 plus r.
02:13
So that's 345 plus 1 .15 to the 1, which is 396 .75.
02:31
So using the above information, we can plug in 396 .75 times 1 minus 0 .15, 1 plus 0 .15 over 1 plus 0 .18 to the 15th over 0 .18 minus 0 .15.
03:07
And that's going to give us 4237 .6185...