break even confusion

[kriptik]

when I solve part C of the question, do I leave it as it is(5.  or do I round up/down ?

[LFTM]

Round up, you can't have 4.5 mobiles for example, they must be whole(in order to break even).

[kriptik]

but if we round up, wouldn't it be considered as profit and not breaking even?

[LFTM]

can i ask what answer you got?

[kriptik]

i did this

R= 5.5x
C= 3.4x+12.2

making R=C

5.5x=3.4x+12.2
2.1x=12.2
x=5.81
now if i round this up it would be considered as Martha making a profit. So do i just leave it as 5.81 phones?

[letsride]

you can't have .81 of a phone so you have to go down to x=5
what we were told last year in fm, roundinf off doesnt always work in logical answers =P

[LFTM]

That's what i did, I'm preety sure you have to round up because a similar question to this came up in my sac and the teacher said you must round up, if you round down she won't break even.  

[jasoN-]

round up
if you round down you won't break even (as above said)
break even is either on the dollar or profit

[kriptik]

ill ask my teacher just to make sure, see what he says.

[nbalakers24]

round up although its profit, its also breaking even. where as rounding down is just a loss.

[crayolé]

Also "break" means to pass. It doesn't necessarily mean equate to. It just refers the the point where the income literally 'passes' the even point.
Common sense really

[Albeno69]

break even is an accouting term it means how many mobiles does he martha have to sell to make no profit but no loss. 0 dollers.

[stonecold]

For simplicities sake, just round up.

[superstar1]

hey stonecold you got 48 in further, how many marks did you lose over both exams to end up with that mark? i would really like to know, thanks.

[stonecold]

I didn't get a statement of marks, but I know it was at least 2 from reading the examiners report.  I knew about those mistakes literally moments after walking out of the exam anyway...

I don't know if I made any other mistakes.  Possibly lost another mark or 2 at absolute most.