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Mathematics 18 Online
OpenStudy (anonymous):

http://static.k12.com/eli/ecollege/589/4_31554/2_41444_4_31602/56f1e3d2371e2130e68d2c18ed34752396282db0/media/d897f103e50231e669a398f430011f71e35a8996/mathml_18fbbe11e155be4c0f449092447c21a9df696f8f_1.gif

OpenStudy (anonymous):

@Joel_the_boss @robtobey @zepdrix

OpenStudy (anonymous):

@bibby @CrazyCountryGirl

zepdrix (zepdrix):

Hey Shaylee c:

OpenStudy (anonymous):

hi :)

zepdrix (zepdrix):

\[\Large\rm \frac{|x|}{-6}=-12\]So we need to find solutions for x? What's our first step? Our "x" is being divided by -6, what is the inverse operation we should perform to get the x alone? :o

OpenStudy (anonymous):

-12 multiplied by -6 = x?

OpenStudy (anonymous):

is that right idk lol

zepdrix (zepdrix):

\[\Large\rm |x|=70\]Ok good, so that gets us to this point. Then recall that one way we can rewrite our absolute is like this:\[\Large\rm |x|=\pm x\]

OpenStudy (anonymous):

so x would be -72 or just 72

OpenStudy (anonymous):

couldn't it be both?

zepdrix (zepdrix):

Yes, good job c: My multiplication was off huh? hahah my bad

zepdrix (zepdrix):

x has two solutions, 72 and -72

OpenStudy (anonymous):

could u help me some more pls?

zepdrix (zepdrix):

Maybe <.<

OpenStudy (anonymous):

lol do u want me to open a new question or just stay on this one

zepdrix (zepdrix):

ehh let's just keep this one open i guess

OpenStudy (anonymous):

ok

OpenStudy (anonymous):

this one would be -12 right?

zepdrix (zepdrix):

yes :U

OpenStudy (anonymous):

ok 2 more

OpenStudy (anonymous):

Write an equation to model the given problem. Susan paid $36.90 for nine washcloths. What is the unit price p per washcloth? (Points : 1)

OpenStudy (anonymous):

i have no clue on this one ^^^^

zepdrix (zepdrix):

Let's call a single washcloth \(\Large\rm w\) w = some amount of money, but we don't know how much. That's what we're trying to figure out. But we know the price of 9w, yes? Can you set up an equation using that information? :)

OpenStudy (anonymous):

p/9 = $36.90?

OpenStudy (anonymous):

i was saying p was the washcloth XD

OpenStudy (anonymous):

idk im bad at math

zepdrix (zepdrix):

Oh they gave us p in the problem, for the price of one washcloth. I was using w, my bad >.<

OpenStudy (anonymous):

or is it 9p = 36.64?

zepdrix (zepdrix):

Yahhh, there we go \c:/ The price of a single wash cloth is \(\Large\rm p\) So the price of \(\Large\rm 9p\) is \(\Large\rm 36.64\)

OpenStudy (anonymous):

ooo ok thank u i have one more question i did it but idk if i did it right

OpenStudy (anonymous):

Solve: Four friends go out to lunch and decide to split the bill evenly. If the bill comes to $46.64, how much does each person owe?

OpenStudy (anonymous):

would each person pay $11.66? thats what i got for this one ^

zepdrix (zepdrix):

GASP! You and your friends forgot to leave a tip! :( That's going to change everything!!

zepdrix (zepdrix):

jk jk, yah that looks correct c:

zepdrix (zepdrix):

yayyy team \c:/

OpenStudy (anonymous):

lol XDD

OpenStudy (anonymous):

yayyyyy i got 1000 thank you so muchhh

OpenStudy (anonymous):

100**

zepdrix (zepdrix):

cool

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