An electronics store makes a profit of $32 for every portable DVD player sold and $64 for every DVD recorder sold. The manager’s target is to make at least $256 a day on sales of the portable DVD players and DVD recorders. Write and graph an inequality that represents the number of both kinds of DVD players that can be sold to reach or beat the sales target. Let p represent the number of portable DVD players and r represent the number of DVD recorders.

Question

anonymous · Answer

https://www.connexus.com/content/media/642756-192012-91551-AM-1446457420.png https://www.connexus.com/content/media/642756-192012-91551-AM-2013381943.png https://www.connexus.com/content/media/642756-192012-91551-AM-647275288.png https://www.connexus.com/content/media/642756-192012-91551-AM-2053255637.png

anonymous · Answer

@mathstudent55 help?:)

perl · Answer

need login password

anonymous · Answer

what?

mathstudent55 · Answer

You need to let p = number of portable DVD players, and
                   let r = number of DVD recorders

anonymous · Answer

@perl thats mean...

perl · Answer

you posted a link, i would like to help. but i need username/password

mathstudent55 · Answer

Since each player makes $32 profit, how much profit do p players make?

perl · Answer

you posted 4 links, which prompt you for username/password

anonymous · Answer

$64:)

mathstudent55 · Answer

1 player makes 1 * $32 profit
2 players make 2 * $32 profit
3 players make 3 * $32 profit
p players make ? profit

anonymous · Answer

well i know 32p+64r>256

mathstudent55 · Answer

I would write 32p + 64r >= 256 because it has to be at least $256 profit, not just more than $256 profit.

anonymous · Answer

@perl im getting help already, please go elswere and help someone else.

anonymous · Answer

oops, im sorry thats what i mean, symbols got mixed up

mathstudent55 · Answer

@perl The goal of OS is to help people. How is pestering someone helping?

anonymous · Answer

@perl why is it that your so nosy? its a HOMEWORK site because i do ONLINE SCHOOL like many people here, and this is a practice problem. you shuld practice leaving me be.

perl · Answer

i clicked on your stupid 4 links, you made my computer angry

mathstudent55 · Answer

Ok, you got the inequality right. Now do you need to graph it?

perl · Answer

she doesnt have a clue , just move on

anonymous · Answer

yes i do and it has to be shaded :)

anonymous · Answer

@perl just leave me alone, please...

mathstudent55 · Answer

@hopiesoapy Did you come up with a line for the graph already?

anonymous · Answer

No :( sorry

mathstudent55 · Answer

The way you graph an inequality is by first changing it into just a line.
Graph 32p + 64r = 256

anonymous · Answer

so like y=mx+b kindof? Ill give you an example....

anonymous · Answer

https://www.connexus.com/content/media/642756-192012-91551-AM-2013381943.png

mathstudent55 · Answer

My suggestion her is to graph by getting 2 points. Usually the easiest points to get are the x- and y-intercepts.
Let x = 0 and solve for y.
Let y = 0 and solve for x.

anonymous · Answer

okay :) i thought that is what i had to do but i wasnt sure. i will work it out :)

mathstudent55 · Answer

BTW, here you have p and r instead of x and y, so what I meant was to 
let p = 0 and solve for r, then 
let r = 0 and solve for p

anonymous · Answer

does r=4? and p=8?

anonymous · Answer

thats what i did :)

mathstudent55 · Answer

Correct. Good job.
Now you can graph the line. Since in the inequality you have a >= sign, you graph a solid line. For a > sign or a < sign, you graph a dashed line.

anonymous · Answer

and it is shaded up, correct?

mathstudent55 · Answer

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