• Feb 22nd 2008, 02:58 AM
Manjot9999
ok firstly its algebra:
It says think of a number, then add 6, now add the number you were first thinking of, divide by 2, subtract 3
i need this all in algebra
It started off with:
think of a number = n
but i need to know the rest, so what would the rest of it be?
add the number you were first thinking of = ?
divide by 2 =?
subtract 3 = ?

• Feb 22nd 2008, 03:01 AM
Manjot9999
?
does anybody know?(Worried)
• Feb 22nd 2008, 03:02 AM
mr fantastic
Quote:

Originally Posted by Manjot9999
ok firstly its algebra:
It says think of a number, then add 6, now add the number you were first thinking of, divide by 2, subtract 3
i need this all in algebra
It started off with:
think of a number = n
but i need to know the rest, so what would the rest of it be?
add the number you were first thinking of = ?
divide by 2 =?
subtract 3 = ?

x --> x + 6 --> x + 6 + x = 2x + 6 --> (2x + 6)/2 --> x + 3 --> x + 3 - 3 = x.
• Feb 22nd 2008, 03:06 AM
mr fantastic
Quote:

Originally Posted by Manjot9999
does anybody know?(Worried)

You posted the question only three minutes earlier!!

As it happens, you got lucky on this occassion and posted the question just as I was passing.

However, it is more often than not the case that it might take several hours (or longer) before you get a reply ......
• Feb 22nd 2008, 03:06 AM
Manjot9999
thanks but
thanks for that but it said it was wrong, do yuo know why it might have said that?
• Feb 22nd 2008, 03:08 AM
Manjot9999
hi
can you go on :

MyMaths.co.uk - MyMathsBooster6Test

type in what you told me and it says its wrong, can you go and try please?
• Feb 22nd 2008, 03:08 AM
mr fantastic
Quote:

Originally Posted by Manjot9999
thanks for that but it said it was wrong, do yuo know why it might have said that?

What is the "it" that said the answer is wrong? The answer I have given is NOT wrong.
• Feb 22nd 2008, 03:09 AM
Manjot9999
...
the it is the website that checks it
• Feb 22nd 2008, 03:12 AM
Manjot9999
oh
sorry you were right, i was doing something else, im really sorry
• Feb 22nd 2008, 03:13 AM
mr fantastic
Quote:

Originally Posted by Manjot9999
can you go on :

MyMaths.co.uk - MyMathsBooster6Test

type in what you told me and it says its wrong, can you go and try please?

(Speechless) Well, the answer I gave:

x --> x + 6 --> x + 6 + x = 2x + 6 --> (2x + 6)/2 --> x + 3 --> x + 3 - 3 = x.

If you'd thought about what I posted, you would have quickly realised that the overall expression is

(x + 6 + x)/2 - 3.
• Feb 22nd 2008, 03:15 AM
Manjot9999
thanks
thank you!!!!
• Feb 22nd 2008, 03:20 AM
Manjot9999
can you help with this question now please?
a trundle wheel is used to measure distances, a person makes a trundle wheel, of diameter 40cm

what is the circumfrence of the trundle wheel (in cms)?

The person uses the trundle wheel to measure the length of the school car park, the trundle wheel rotates 46 times, what is the length of the car park to the nearest metre?
and it says to use pi in all calculations
• Feb 22nd 2008, 03:23 AM
Peritus
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