Question

A pawnbroker buys a tv set and a computer for $600. He sells the comouter at a markup of 30% and the tv set at a markup of 20%. If he makes a profit of $165 on the sale of the two items, hwat did he pay for the computer?

Answer 1

t + c = 600
1.30t+ 1.20c = 765

Solve the system.

Answer 2

ooo soo all I was missing was the ones on the %s thought my answer was off

Answer 3

t(1 + .30) = t + .30t = 1.30t
c(1+.20) = c + .20c = 1.20c

Answer 4

The markups of course is what allows him to make a profit.

Answer 5

soo is it 1.3t+1.2c=765?

Answer 6

For the second equation, yes

Answer 7

first equation is t+c=600 then the second one is 1.3t+1.2c=765

Answer 8

Correct

Answer 9

the profit is 165 not 765

Answer 10

but I know how to solve one equation and pug it into the other=)

Answer 11

765 is the total amount he will have however.

Answer 12

If you have $600, then spend it, would reselling and making only $165 back be a profit?

Answer 13

Ya but they're wanting to know how much he paid for the computer not the total profit

Answer 14

In order to do that, you have to find the value of variable c.

In order to find variable c, you have to set up the proper equations.

Answer 15

Marie, I don't understand why you are disputing my setup.

Answer 16

you set it up right I'm just questioning whether it should be 765 or 165

Answer 17

It goes back to that same thing I was telling you earlier. If you put 165, it would mean he only made 165 after reselling. Making only 165 after reselling is not a profit because 165 < 600

A profit only exists if x > 600
765 > 600, which is a profit of 165

The first equation represents the amount of each item costs equaling their total cost.
The second equation represents the re-sell prices equaling the total amount made including the original amount plus the profit.

Answer 18

There's no other way to do this, sorry.

Answer 19

7050/11?

Answer 20

And what might that be?

Answer 21

vs. 1050/11

Answer 22

the first fraction is what I got the first time using your way the second one is my way

Answer 23

FYI, prices are not given in fractions. Put the answer in decimal form up accurate to two decimal places

Answer 24

That is not correct:

Wolfram provides the correct values:
http://www.wolframalpha.com/input/?i=t+%2B+c+%3D+600+and+1.30t%2B+1.20c+%3D+765

Answer 25

okay lol I trust you lol I won't argue next time

Answer 26

My book says 450

Answer 27

Yeah, I originally mixed up the variables at the beginning. But 450 and 150 are the answers.

If you wanted to nitpick at me, you should have nitpicked me for mixing up the variables :P

Answer 28

It was supposed to be:

c + t = 600
1.30c+ 1.20t = 765

That's the only mistake I made.

Answer 29

But everything else is right.

Answer 30

Hey I don't mean to pick on you I just wanna understand this stuff

Answer 31

I know. Wanna go to vyew?

Answer 32

?

Answer 33

Vyew = Collaborative Online Classroom

Answer 34

Where has this been hiding all this time?

Answer 35

lol

Answer 36

It's not a replacement for open study, but it's a great supplement if you want to learn stuff.

Answer 37

cool

Answer 38

Click the link ^

Answer 39

I'm not getting the answer though lol I re-did the variables

Answer 40

I can show you how

Answer 41

in the other site?

Answer 42

Click the link I sent

Answer 43

Yes

Answer 44

k

Answer 45

grait job