00:01
Okay, so in problem number five, we have a function y equals 1 .3485x plus 840 .51, where x is square footage.
00:16
So we want the monthly rent with 1 ,200 square feet.
00:20
So first we want to let x equal 1 ,200.
00:26
So just put in 1 ,200 for x and we'll get our value for y.
00:33
Grab a calculator, 1 .3485 times 1 ,200, and then add 840 .51.
00:46
That will be $2 ,458 .71.
00:55
Now, the second part, we want to know the square footage, so now we want to let y equal 1900 and we're going to solve for x so subtract 840 .51 from both sides 1900 minus 840 .51 that gives me 105949 and then divide both sides by 1 .3485 and that is going to give you 785 .685 and that is going to give you 785 .685.
01:48
84, so about 786 square feet.
01:58
Now let's look at number six.
02:02
Conan is moving into an apartment.
02:04
His rent is 2000.
02:06
We want to know how much he's going to pay up front.
02:09
Okay, so his application fee is 3 % of 2000.
02:15
So 0 .03 times 2000.
02:24
That is going to be $60 .00.
02:28
Then he has a credit fee, so that's $20.
02:34
His security is one month's rent and the last month's rent.
02:39
So that's going to be two times $2 ,000.
02:45
So that's $4 ,000.
02:49
And then he has a broker's fee that's 14 % of a year's rent.
02:54
So we want 0 .14 times 12 times 2 ,000...