A simple maths question

[NeonZombie]

Hi,

My GCSE Maths exam is tomorrow and im really confused about "Reciprocals" I've tried various sites like Yahoo answers and bitesize but im still struggling to understand

I printed out a mock exam that my maths teacher gave me to revise from and one of the questions is

"Write down the reciprocal of 9"

Can anyone help please? I dont just want the answer i would also like an explination so i can do it in the exam tomorrow if it comes up

cheers

 

[TheLastCylon]

I believe that a reciprocal is a fraction flipped over. So the reciprocal of 9 would be one-ninth (1/9). I haven't done this type of math in awhile so i might be a little bit rusty.

 

[RapidCrash]

http://en.allexperts.com/q/Basic-Math-657/reciprocal.htm

write the number as a fraction if it isn't already (any whole number is that number over 1), then flip it.

 

[RetiarySword]

Reciprical just means 1 over

So the reciprical of 9 is 1
9

It can also be stated as 9x10^-1

 

[NeonZombie]

Cheers guys i finally get this now

Any moderators feel free to delete this thread

 

[DragonsAteMyMarbles]

I believe that a reciprocal is a fraction flipped over. So the reciprocal of 9 would be one-ninth (1/9). I haven't done this type of math in awhile so i might be a little bit rusty.

That's right.
If they want it in decimal form, just type in the number then press the x[sup]-1[/sup] button on your scientific calculator. Then hit =.
Which for 9 gives you 0.1111111111111111.

 

[Nargleblarg]

Also the reciprocal of like 1/9 would be 9 or 2/9 is now 9/2.

 

[ace_of_something]

Wouldn't it be a 'math' question as the plural of math is math?

 

[Ophiuchus]

Wouldn't it be a 'math' question as the plural of math is math?

Nope. We call it maths, since it's short for mathematics, technically a plural.

 

[electric_warrior]

Hi,

My GCSE Maths exam is tomorrow and im really confused about "Reciprocals" I've tried various sites like Yahoo answers and bitesize but im still struggling to understand

I printed out a mock exam that my maths teacher gave me to revise from and one of the questions is

"Write down the reciprocal of 9"

Can anyone help please? I dont just want the answer i would also like an explination so i can do it in the exam tomorrow if it comes up

cheers

did my gcse's last year, somehow managed to get an A in maths. trust me, its not as hard as you'd imagine, if i can most people can.
if i remeber right, reciprocals are when you divide one by the number to get a fraction, so the reciprocal of 9 is 1/9 and the reciprocal of 2 is 1/2. basically you take the number and make it the denominator, then have 1 as the numerator. don't hate me if i'm wrong, i haven't done maths in like a year.

 

[Trivun]

Reciprical just means 1 over

So the reciprical of 9 is 1/9

It can also be stated as 9x10^-1

Actually, 9x10^-1 would be equal to 1/90, the correct denotion is 9^-1. Otherwise, a good answer.

 

[RetiarySword]

Reciprical just means 1 over

So the reciprical of 9 is 1/9

It can also be stated as 9x10^-1

Actually, 9x10^-1 would be equal to 1/90, the correct denotion is 9^-1. Otherwise, a good answer.

Good eye, I'm thinking of scientific measuremens. Speaking of which I have to finish my physics work.

 

[Trivun]

Wouldn't it be a 'math' question as the plural of math is math?

No offence about this, but you Americans have always got that wrong, like so many other words you use that are bastardised versions of English. It's Mathematics, so because that's a plural the word Maths is correct. Math has always been wrong, whereas Maths is right.

 

[ace_of_something]

Wouldn't it be a 'math' question as the plural of math is math?

No offence about this, but you Americans have always got that wrong, like so many other words you use that are bastardised versions of English. It's Mathematics, so because that's a plural the word Maths is correct. Math has always been wrong, whereas Maths is right.

Would you be offended if I told you we spell it offense? I think the word 'bastardised' is in appropriate as not every word and usage of said word has existed since they colonies were founded. Some have even changed spelling over last 400 years. I'm sure modern day British English is a 'bastardization' of the English that was spoken on the isles 400 years ago too. All languages including English are mutable to some degree and will always be changing. That being said I was unaware of the differance. Neat

Wouldn't it be a 'math' question as the plural of math is math?

Nope. We call it maths, since it's short for mathematics, technically a plural.

Yeah, and when we say Math it's short for the same thing. I was unaware of the grammatical differance. It sounds like something a little kid would say to me. Which is odd cuz the British way of saying things usually sounds more prim than our way.

Okay, I will not respond to any more comments on this. I wish to derail this topic no longer

 

[G. Alarimm]

1/9.

9 in a fraction is 9/1, so reversed, is 1/9.

 

[-bladerunner-]

Hi,

My GCSE Maths exam is tomorrow and im really confused about "Reciprocals" I've tried various sites like Yahoo answers and bitesize but im still struggling to understand

I printed out a mock exam that my maths teacher gave me to revise from and one of the questions is

"Write down the reciprocal of 9"

Can anyone help please? I dont just want the answer i would also like an explination so i can do it in the exam tomorrow if it comes up

cheers

YEAH A FELLOW GCSE TAKER! Good luck with yours mate! I got mine tomorrow as well hope u get an A*.
In reply to your question: damn I need to know this also so I'll scan the thread for the answer.

 

[Weaver]

I'm in my fourth year in computer science in the mathematics department at my university, so if you guys got any more math questions you can PM me.