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  LiveWire / Teen Forums / School & Homework Connection / Viewing Topic

Fractions in equations?
Replies: 10Last Post Oct. 12, 2008 8:22pm by Blue Baby
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( Miss Prophetess )


Connoisseur
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I know you've got to do the opposite in an equation, so a fraction would have to be multiplied. But multiplied by what? Can someone walk me through how to do them? Here are two examples:

e/-4+8 < 1

t+3/2 < -8

I can do linear equations, but when the fractions are in there, I get stumped. I forget what to do with them.

Post edited at 5:56 pm on Oct. 9, 2008 by Miss Prophetess

-------
I have harnessed the shadows that stride
from world to world to sow death and madness...


5:56 pm on Oct. 9, 2008 | Joined: Nov. 2006 | Days Active: 208
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HXC


Enlightened One

Patron
Reply
I CAME.

-------
Move your hands and feet. i dont even care if you dance offbeat.
when you dance on me, keep hands off please.
I dont want nobody to think im with you, i mean you seem cool
but your friend seems pretty damn cool too

5:56 pm on Oct. 9, 2008 | Joined: Sep. 2007 | Days Active: 263
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hateitandloveit


Soothsayer
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Quote: from HXC at 8:56 pm on Oct. 9, 2008

I CAME.

I SAW.
(and lol'd)

Post edited at 5:58 pm on Oct. 9, 2008 by hateitandloveit

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lol signature


5:57 pm on Oct. 9, 2008 | Joined: Jan. 2008 | Days Active: 307
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HXC


Enlightened One

Patron
Reply
Quote: from hateitandloveit at 5:57 pm on Oct. 9, 2008

Quote: from HXC at 8:56 pm on Oct. 9, 2008

I CAME.

I SAW.


you saw me cum?

-------
Move your hands and feet. i dont even care if you dance offbeat.
when you dance on me, keep hands off please.
I dont want nobody to think im with you, i mean you seem cool
but your friend seems pretty damn cool too


5:58 pm on Oct. 9, 2008 | Joined: Sep. 2007 | Days Active: 263
Join to learn more about HXC Czech Republic | Straight Male | Posts: 12,003 | Points: 14,618
( Miss Prophetess )


Connoisseur
Reply
Quote: from HXC at 5:56 pm on Oct. 9, 2008

I CAME.

If you're so gay for math, why can't you help me?

-------
I have harnessed the shadows that stride
from world to world to sow death and madness...


5:58 pm on Oct. 9, 2008 | Joined: Nov. 2006 | Days Active: 208
Join to learn more about Miss Prophetess Pennsylvania, United States | Straight Female | Posts: 4,605 | Points: 7,097
HXC


Enlightened One

Patron
Reply
Quote: from Miss Prophetess at 5:58 pm on Oct. 9, 2008

Quote: from HXC at 5:56 pm on Oct. 9, 2008

I CAME.

If you're so gay for math, why can't you help me?


too busy jerkin' it.

-------
Move your hands and feet. i dont even care if you dance offbeat.
when you dance on me, keep hands off please.
I dont want nobody to think im with you, i mean you seem cool
but your friend seems pretty damn cool too


5:59 pm on Oct. 9, 2008 | Joined: Sep. 2007 | Days Active: 263
Join to learn more about HXC Czech Republic | Straight Male | Posts: 12,003 | Points: 14,618
hateitandloveit


Soothsayer
Reply
Quote: from Miss Prophetess at 8:58 pm on Oct. 9, 2008

Quote: from HXC at 5:56 pm on Oct. 9, 2008

I CAME.

If you're so gay for math, why can't you help me?


hahahahahaha

-------
lol signature


5:59 pm on Oct. 9, 2008 | Joined: Jan. 2008 | Days Active: 307
Join to learn more about hateitandloveit Massachusetts, United States | Straight Male | Posts: 6,653 | Points: 11,644
asb


Dairy Product Addict
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Quote: from hateitandloveit at 5:57 pm on Oct. 9, 2008

Quote: from HXC at 8:56 pm on Oct. 9, 2008

I CAME.

I SAW.
(and lol'd)


I CONQUERED

I assume you mean e/-4 + 8 < 1
rather than e/(-4+8) < 1 ...

so take 8 from both sides

e/-4 < -7

multiply both sides by -4 (remembering the inequality swaps when multiplying by a negative number)
e > 28

et voila...


11:44 am on Oct. 10, 2008 | Joined: June 2006 | Days Active: 132
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Blue Baby


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please put parentheses

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Ang Akong Balay

7:46 pm on Oct. 10, 2008 | Joined: Oct. 2005 | Days Active: 578
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( Miss Prophetess )


Connoisseur
Reply
Quote: from asb at 11:44 am on Oct. 10, 2008

Quote: from hateitandloveit at 5:57 pm on Oct. 9, 2008

Quote: from HXC at 8:56 pm on Oct. 9, 2008

I CAME.
 

 I SAW.  
 (and lol'd)


I CONQUERED

I assume you mean e/-4 + 8 < 1
rather than e/(-4+8) < 1 ...

so take 8 from both sides

e/-4 < -7

multiply both sides by -4 (remembering the inequality swaps when multiplying by a negative number)
e > 28

et voila...


Thanks...

I remembered that when a fraction's in an equation, it must be multitplied.  But I didn't remember by what.  Now I know for sure it's the denominator.  I think I've got it now (hopefully, since the test is on Tuesday).

Quote: from Blue Baby at 7:46 pm on Oct. 10, 2008


please put parentheses

There weren't any parantheses in the problem as the way it was in the book.  I copied it down the way it was written.

-------
I have harnessed the shadows that stride
from world to world to sow death and madness...


11:04 am on Oct. 12, 2008 | Joined: Nov. 2006 | Days Active: 208
Join to learn more about Miss Prophetess Pennsylvania, United States | Straight Female | Posts: 4,605 | Points: 7,097
Blue Baby


Visionary
Reply
Quote: from Miss Prophetess at 2:04 am on Oct. 13, 2008

Quote: from Blue Baby at 7:46 pm on Oct. 10, 2008


please put parentheses
 

There weren't any parantheses in the problem as the way it was in the book.  I copied it down the way it was written.


Yeah, they may not have but they are most likely written in a different way.

Example:

Is that  

e
---- + 8 < 1 ----> (e/-4)+8 < 1
-4

or

e
------- < 1 ? -----> e/(-4+8) < 1
-4 + 8

Post edited at 8:23 pm on Oct. 12, 2008 by Blue Baby

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Ang Akong Balay


8:22 pm on Oct. 12, 2008 | Joined: Oct. 2005 | Days Active: 578
Join to learn more about Blue Baby Philippines | Straight Female | Posts: 2,361 | Points: 8,318
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