
Re: Maths!!!!
one more thing. I need help with the problems below:
The average of 2 and 4 is 3. what is the average of the reciprocals 2 and 4?
Re: Maths!!!!
please help me, i have one of the most important math tests coming up and i really need help with my math. If i don't pass i'm going to be behind a year on math and my parents won't appreciate that.
 MathsIsFun
 Administrator
Re: Maths!!!!
The Reciprocals of 2 and 4 are 1/2 and 1/4
To average them, you have to add them together and divide by 2
Add them : 1/2 + 1/4 = 2/4 + 1/4 = 3/4
Then divide by 2: (3/4) / 2 = 3/8 DONE
Makes sense, really  what is half way between 1/2 and 1/4? 3/8
We don't have any worksheets on this, but we have other worksheets for you to practice on here
"The physicists defer only to mathematicians, and the mathematicians defer only to God ..."  Leon M. Lederman
Re: Maths!!!!
oh, i get it. it makes alot more sense then what my teacher told me. Thanks
 MathsIsFun
 Administrator
Re: Maths!!!!
"The physicists defer only to mathematicians, and the mathematicians defer only to God ..."  Leon M. Lederman
Re: Maths!!!!
here is 1 of my math questions:
use a ratio box to solve this problem. In 25 minutes, 400 customers entered the attraction. At this rate, how many customers would enter the attraction in one hour?
please help!!
Re: Maths!!!!
look i know ur offline and i'm probally being pushy but when u get online u gotta answer me a.s.a.p. I'm desperate here. I NEED HELP!!!!!!
 MathsIsFun
 Administrator
Re: Maths!!!!
princess wrote:use a ratio box to solve this problem. In 25 minutes, 400 customers entered the attraction. At this rate, how many customers would enter the attraction in one hour?
25 minutes 400 customers 60 minutes 960 customers
So, 25 is to 60 as 400 is to 960
Or another way of looking at it 25 x 2.4 = 60, so 400 x 2.4 = 960
Or, 25/60 = 400/960
Or ... anything like that
NOW, I am not sure what you have been taught anout "Ratio Boxes"  there can be more than one way to do them, so I hope this matches with what you have been taught.
"The physicists defer only to mathematicians, and the mathematicians defer only to God ..."  Leon M. Lederman
Re: Maths!!!!
Answering to the puzzle, technically you could do 11+1+3+3+3=21.
 MathsIsFun
 Administrator
Re: Maths!!!!
mathsyperson wrote:Answering to the puzzle, technically you could do 11+1+3+3+3=21.
That must be in response to: j4tt wrote:hi i got a nice problem 4 you. you got 12 numbers which are 1 1 1 3 3 3 5 5 5 7 7 7 how do you add any 6 numbers to make 21??? Remember no subtraction, division or multiplication and using only 6 numers not more not less..!!!!!!
Good one!
And before j4tt turns up and disagrees, I will say "You Are Right!"
"The physicists defer only to mathematicians, and the mathematicians defer only to God ..."  Leon M. Lederman
 Roraborealis
 Super Member
Re: Maths!!!!
School is practice for the future. Practice makes perfect. But  nobody's perfect, so why practice?
 Zach
 Super Member

Re: Maths!!!!
I concur with whoever is right.
Boy let me tell you what: I bet you didn't know it, but I'm a fiddle player too. And if you'd care to take a dare, I'll make a bet with you.
 Roraborealis
 Super Member
Re: Maths!!!!
I disagree because you cannot use 11.
School is practice for the future. Practice makes perfect. But  nobody's perfect, so why practice?
 Zach
 Super Member

Re: Maths!!!!
Stop trying to steal my Limelight!
Boy let me tell you what: I bet you didn't know it, but I'm a fiddle player too. And if you'd care to take a dare, I'll make a bet with you.
 Roraborealis
 Super Member
Re: Maths!!!!
School is practice for the future. Practice makes perfect. But  nobody's perfect, so why practice?
 Mr T
 Super Member
Re: Maths!!!!
why can't you use 11? 11 is a number
I come back stronger than a poweredup PacMan I bought a large popcorn @ the cinema the other day, it was pretty big...some might even say it was "large Fatboy Slim is a Legend
 Roraborealis
 Super Member
Re: Maths!!!!
Any of the six numbers. 11 is not one of them.
School is practice for the future. Practice makes perfect. But  nobody's perfect, so why practice?
Re: Maths!!!!
i have another problem again.
the question is:
collect the terms. x squared + 6x  2x 12
i just don't understand it
 MathsIsFun
 Administrator
Re: Maths!!!!
Hi again, princess.
Easy peasy ... just neaten it up, so that "terms" such as x, or xsquared are brought together.
So, you have: xsquared + 6x  2x  12
There is just one "xsquared" term, so thats fine as it is There are two "x" terms, so add them together: 6x  2x = 4x And there is just one normal number term (called a "constant"), ie, 12.
So the neatenedup expression is:
xsquared + 4x  12 DONE
"The physicists defer only to mathematicians, and the mathematicians defer only to God ..."  Leon M. Lederman
 Roraborealis
 Super Member
Re: Maths!!!!
School is practice for the future. Practice makes perfect. But  nobody's perfect, so why practice?
 Mr T
 Super Member
Re: Maths!!!!
I come back stronger than a poweredup PacMan I bought a large popcorn @ the cinema the other day, it was pretty big...some might even say it was "large Fatboy Slim is a Legend
 stewie
 Power Member
Re: Maths!!!!
Roraborealis wrote:Oh, joy!
Dont steal my saying, u dont even know where its from
HAPPY HAPPY, JOY JOY Fatboy Slim is the band of the 90s, thats if you want to call it a band because its really a one man name
 MathsIsFun
 Administrator
Re: Maths!!!!
Oh, Yeah, "Happy, Happy, Joy, Joy"
"The physicists defer only to mathematicians, and the mathematicians defer only to God ..."  Leon M. Lederman
