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avatar+475 

I have 3/5n - 4/5 = 1/5n 

 

 

so what I did was gathered like terms first.... which means I carried 1/5n from the other side over and subtracting it to 3/5n  

 

2/5n - 4/5 = 

 

now I carry -4/5 over to the other side like this 

 

2/5n = 4/5 and I know to find n I would have to divide 4/5 by 2/5 so I set up my fractions keeping note of making 4/5 into it's recipacle of 5/4 

 

 

2/5 x 5/4 = 10/20 reduced equals 1/2 What is I'm doing wrong??? 

 

 

Its a multiple choice question to so here are the options 

 

 

n = -1 

 

n = 2 

 

n = 5/3 

 

n= 5/2

 Mar 20, 2019
edited by HiylinLink  Mar 20, 2019
 #1
avatar+104436 
+1

You are turning the wrong fraction upside down :)

3/5n - 4/5 = 1/5n 

I'll show you very formally.

 

The equation must always balance, like a tetter totter (I think that is what Americans call them)

Whatever you do to one side you must do to the other side as well!

 

\(\frac{3}{5}n-\frac{4}{5}=\frac{1}{5}n\\~\\ \frac{3}{5}n-\frac{4}{5}-\frac{1}{5}n=\frac{1}{5}n-\frac{1}{5}n\\~\\ \frac{2}{5}n-\frac{4}{5}+\frac{4}{5}=0+\frac{4}{5}\\~\\ \frac{2}{5}n=\frac{4}{5}\\~\\ \frac{2}{5}n\div \frac{2}{5} =\frac{4}{5}\div \frac{2}{5}\\~\\ n=\frac{4}{5}\div \frac{2}{5}\\~\\ n=\frac{4}{5}\times \color{blue}{\frac{5}{2}}\\~\\ n=\frac{2}{1}\\~\\ n=2\)

.
 Mar 20, 2019
 #2
avatar+475 
-2

OOOOH thank you this really means alot to me I must have forgot about that rule well now I know were to correct myself thanks so musch by the way how to get thaty fancy faded out grey type and type in fractions I have always been curious on how to do it.

HiylinLink  Mar 20, 2019
edited by HiylinLink  Mar 20, 2019
 #3
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+1

 

Melody, a teeter-totter is a two-seated ride that swings back and forth 

 

A see-saw is a board that pivots in the center with a rider on each end

 Mar 20, 2019
 #4
avatar+475 
-3

Yeah although I always thought teeter totter was another name for a see saw because in america we call it a seesaw

HiylinLink  Mar 20, 2019
 #5
avatar+104436 
+1

Thanks,

What country are you in? 

On american TV shows I have heard them call what you and I call a see saw, a teeter totter. ....

Look

 

https://www.youtube.com/watch?v=rmAT91VZzoI

Melody  Mar 20, 2019
 #6
avatar+475 
-3

Well frankly for younger children they call it a teeter totter just to be cute other than that I don't know. although I don't know what you put there because of parental coontrols (Which isn't a problem) but I am thinking its a younger child show....... It could not be but I might.

HiylinLink  Mar 20, 2019
edited by HiylinLink  Mar 20, 2019
 #7
avatar+716 
0

Melody we call tettor totters see saws and vice versa. If you get what I'm saying.

ilovepuppies1880  Mar 20, 2019
 #8
avatar+104436 
+1

ok thanks. 

Maybe when I was young you called it a Teeter totter more but now it is changing so that See Saw is more common,

Here in Australia, it has always been a See Saw.

 

That was just an American you tube clip which definitely called it a Teeter Totter.

 

anyway, this is what I am talking about.

 

 

Melody  Mar 20, 2019
 #9
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0

 

Hi Melody.  I'm in the US.  The video you provided showed what I mean by see-saw.  I tried to find a pic/video of what I call a teeter-totter but was unable to.... everything showed a see-saw!  There is a children's ride that we called a teeter-totter, but now I'm supposing the name was local to southeast Oklahoma, where I was at the time.  I guess. 

 

The ride is similar to a see-saw in that it is a horizontal plank with a seat at each end where the riders face each other.  But rather than pivoting rotationally in the center, the plank swings back and forth from an overhead pivot, held by two stiff tubes that attach to the plank, making roughly a triangular shape.  I'll keep looking for a pic. 

 

.

 Mar 20, 2019
 #10
avatar+475 
-2

Okay well that total blew my definition of a teeter totter away I had know Idea what that is but okay hopefully you find that pic.

HiylinLink  Mar 20, 2019
 #11
avatar+104436 
0

Ok you call it a see saw but the people in the video called it a Teeter Totter.

 

Anyway, it doesn't matter.  We all know what I was talking about  (I hope lol)  wink

Melody  Mar 20, 2019
 #12
avatar+475 
-3

XD yup, I'm pretty sure I refer to it as a child years phrase. because I have never heard it other wise past ten.

HiylinLink  Mar 20, 2019
 #13
avatar+19326 
+1

Teeter-totter  =  See-saw in my world growing up in the US of A.   (in the South)   ~EP

 Mar 20, 2019
edited by ElectricPavlov  Mar 20, 2019

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