Math Is Fun Forum
  Discussion about math, puzzles, games and fun.   Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ • π ƒ -¹ ² ³ °

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#51 2013-09-12 04:27:57

Derick Mixon
Member
Registered: 2013-09-03
Posts: 65

Re: Math

I have that answer as well

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#52 2013-09-12 04:30:10

Derick Mixon
Member
Registered: 2013-09-03
Posts: 65

Re: Math

what about the rest of them?

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#53 2013-09-12 04:38:47

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 86,366

Re: Math

Doing them now, will post them when they are done.


In mathematics, you don't understand things. You just get used to them.
Of course that result can be rigorously obtained, but who cares?
Combinatorics is Algebra and Algebra is Combinatorics.

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#54 2013-09-12 06:55:56

Derick Mixon
Member
Registered: 2013-09-03
Posts: 65

Re: Math

Pictures:

View Image: test3.gif View Image: test4.gif View Image: test5.gif

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#55 2013-09-12 06:57:13

Derick Mixon
Member
Registered: 2013-09-03
Posts: 65

Re: Math

I need you to show me how you did them along with the answer

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#56 2013-09-12 11:54:39

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 86,366

Re: Math

Cross multiply.

Expand.

Can you take it from there?


In mathematics, you don't understand things. You just get used to them.
Of course that result can be rigorously obtained, but who cares?
Combinatorics is Algebra and Algebra is Combinatorics.

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#57 2013-09-12 14:54:00

Derick Mixon
Member
Registered: 2013-09-03
Posts: 65

Re: Math

Directions say solve the given rational equation. Is way youre doing right?

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#58 2013-09-12 15:13:05

Agnishom
Real Member
From: The Complex Plane
Registered: 2011-01-29
Posts: 16,664
Website

Re: Math

Yes.

Solve means to find the value of the variable for which Left Hand Side of the equation equals the Right hand side.

A rational equation equation refers to an equation consisting of rational expressions and only rational expressions.
However, you do not have to worry because it is not your fault if the equations are not rational.


'And fun? If maths is fun, then getting a tooth extraction is fun. A viral infection is fun. Rabies shots are fun.'
'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'
'Humanity is still kept intact. It remains within.' -Alokananda

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#59 2013-09-12 20:08:47

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 86,366

Re: Math

Directions say solve the given rational equation. Is way youre doing right?

If I get the right answer I am usually happy.


In mathematics, you don't understand things. You just get used to them.
Of course that result can be rigorously obtained, but who cares?
Combinatorics is Algebra and Algebra is Combinatorics.

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#60 2013-09-13 02:12:51

Derick Mixon
Member
Registered: 2013-09-03
Posts: 65

Re: Math

is the answer 22x+8

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#61 2013-09-13 02:45:54

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 86,366

Re: Math

Hi;

Subtract 12n from both sides.

Add 4 to both sides.

Divide both sides by 8.


In mathematics, you don't understand things. You just get used to them.
Of course that result can be rigorously obtained, but who cares?
Combinatorics is Algebra and Algebra is Combinatorics.

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#62 2013-09-14 08:07:24

Derick Mixon
Member
Registered: 2013-09-03
Posts: 65

Re: Math

What about the other 2

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#63 2013-09-14 13:24:21

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 86,366

Re: Math

Multiply both sides by 6


In mathematics, you don't understand things. You just get used to them.
Of course that result can be rigorously obtained, but who cares?
Combinatorics is Algebra and Algebra is Combinatorics.

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#64 2013-09-15 09:37:37

Derick Mixon
Member
Registered: 2013-09-03
Posts: 65

Re: Math

I just need the last one done

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#65 2013-09-15 15:16:49

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 86,366

Re: Math

Times both sides by 8.

Add 2 to both sides.

Divide both sides by 10.

Reduce the fraction on the left.


In mathematics, you don't understand things. You just get used to them.
Of course that result can be rigorously obtained, but who cares?
Combinatorics is Algebra and Algebra is Combinatorics.

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#66 2013-09-16 03:55:31

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 86,366

Re: Math

I can not see that.


In mathematics, you don't understand things. You just get used to them.
Of course that result can be rigorously obtained, but who cares?
Combinatorics is Algebra and Algebra is Combinatorics.

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#67 2013-09-16 04:26:35

Derick Mixon
Member
Registered: 2013-09-03
Posts: 65

Re: Math

View Image: 1175218_535740053161536_1585809410_n.jpg View Image: 565061_535739933161548_1539301089_n.jpg View Image: 600613_535739816494893_701423738_n.jpg

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#68 2013-09-16 04:40:22

Derick Mixon
Member
Registered: 2013-09-03
Posts: 65

Re: Math

I need these done to see if I have them correct

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#69 2013-09-17 03:32:26

Derick Mixon
Member
Registered: 2013-09-03
Posts: 65

Re: Math

Are you going to help me?

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#70 2013-09-17 05:28:04

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 86,366

Re: Math

Hi;

I have already done all the problems that you have posted. This is against forum rules to do homework but I have done it anyway.

Here is the way I see it. Supposing there was a guy managing a league of amateur football players. They are playing in the local parks on Saturday and Sunday. They are all about 160 - 170 pounds. Now supposing some team comes along and brings you in to play in this league. The other team captains complain that you are a ringer. The guy says, you should be allowed to play?! Your team quickly moves into first place and wins the league championship.

Was his ruling fair? I do not think so. In the same way what about your classmates? Is it fair that you are bringing in a heavyweight to do your homework while they struggle on their own. Should I get you the highest mark in the class?

I love to help but doing it for you is not help. It is unfair to them and you. You would never have got to be so good at football if someone else had practiced for you.


In mathematics, you don't understand things. You just get used to them.
Of course that result can be rigorously obtained, but who cares?
Combinatorics is Algebra and Algebra is Combinatorics.

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#71 2013-09-17 06:47:05

Derick Mixon
Member
Registered: 2013-09-03
Posts: 65

Re: Math

its not homework I have the answer I need help to see if they are wrong or not

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#72 2013-09-17 10:35:23

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 86,366

Re: Math

Okay, I will believe you. I will post the solutions I get right here.


In mathematics, you don't understand things. You just get used to them.
Of course that result can be rigorously obtained, but who cares?
Combinatorics is Algebra and Algebra is Combinatorics.

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#73 2013-09-17 10:49:26

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 86,366

Re: Math

First one is A, it has no number.

When I draw the graph of the inequality I get which is the same as the question.

I need a little rest, see you later.

View Image: 2013-09-17_154451.gif

In mathematics, you don't understand things. You just get used to them.
Of course that result can be rigorously obtained, but who cares?
Combinatorics is Algebra and Algebra is Combinatorics.

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#74 2013-09-18 03:47:53

Derick Mixon
Member
Registered: 2013-09-03
Posts: 65

Re: Math

Well rested ? if so can you finish helping me please if you don't mind.?

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#75 2013-09-18 05:12:44

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 86,366

Re: Math

I can not see problem 9 well enough to answer the question. Need a bigger picture.


In mathematics, you don't understand things. You just get used to them.
Of course that result can be rigorously obtained, but who cares?
Combinatorics is Algebra and Algebra is Combinatorics.

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