00:01
Okay, so problem 57 is having us at a job where we're selling electronics, and it says we're given these two pay options.
00:07
And the first option is $20 ,000 as a base salary plus 12 % commission, and then b is $26 ,000 for your salary, and then 3 % commission.
00:16
And then i say, okay, since the commission, right, that's dependent upon sales, that means x is going to be the number of sales i make in the electronics.
00:28
Okay, and that's going to help me turn it into equations.
00:33
And so, for example, to turn the first one into an equation, sorry, this is, there we go.
00:39
I take y equals, and we always put it in mx plus b, and m is how much it's changing.
00:44
So the 12 % turns to a 0 .12x, and then the 20 ,000 is our starting salary, right? so even if we don't sell electronics, we still get 20 ,000.
00:53
That's going to be my y intercept, so 20 ,000 like that.
00:58
And the next one, we say that y equals 3 % is 0 .03x plus that 26 ,000, 1, 2 ,3 zeros.
01:08
And basically, in order i need to know how many electronics, right, which is an x, how many i have to sell, in order for a to give me more money than b.
01:18
And so i'm going to come over here, and i'm going to write them equal to each other.
01:22
Right? it's like solving a system of equations.
01:25
Well, that's what it is...