Algebra
Jun 22nd 2011, 10:32 pm
#1
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Posts: 9,668
Algebra
Daughter given algebra questions... Haven't done them for so long can't work out how to help her...
Question is:
If 56 is added to 1/4 of my number, the result is the double of my number. What is my number?
Question is:
If 56 is added to 1/4 of my number, the result is the double of my number. What is my number?
Jun 22nd 2011, 10:40 pm
#2
I'm Old Gregg!
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Location: A Former Bogan Colony in QLD
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Jun 22nd 2011, 10:42 pm
#4
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Re: Algebra
I just deleted this version
Last edited by odyssey; Jun 22nd 2011 at 10:49 pm. Reason: too confusing that answer
Jun 22nd 2011, 10:45 pm
#5
Gutter Gob!!
Joined: Feb 2005
Location: Perth
Posts: 13,098
Re: Algebra
No idea but my daughter and husband are sat at the table doing Algebra right now. Might as well be talking swahili for all I know!
Jun 22nd 2011, 10:46 pm
#6
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Re: Algebra
the key is that x/4=(1/4)x
Jun 22nd 2011, 10:48 pm
#7
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Re: Algebra
x/4+56=2x
(1/4)X+56=2X
56=2X-(1/4)X
56=1.75X
56 divided by 1.75 = X
so when you go over the equals - divide becomesmultiple, addition subtraction etc
you just move stuff around until you get X on its own on one side of the equation
(1/4)X+56=2X
56=2X-(1/4)X
56=1.75X
56 divided by 1.75 = X
so when you go over the equals - divide becomesmultiple, addition subtraction etc
you just move stuff around until you get X on its own on one side of the equation
Jun 22nd 2011, 10:50 pm
#9
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Re: Algebra
and usually you would keep it as fractions - not decimals or youll get caught out later but its hard to type fractions in here
Jun 22nd 2011, 11:07 pm
#13
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Posts: 9,668
Re: Algebra
If 6 is added to 2 1/2 times my number, the result is the triple of my number... What is my number....?
So I'm thinking 6=2.5 x X ....
then I'm lost.
Jun 22nd 2011, 11:19 pm
#14
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Location: Perth
Posts: 2,237
Re: Algebra
Get yourselves set up on the free Mathsonline http://www.mathsonline.com.au/ - you can set up a family account and see if you can keep up with your kids
. Some local councils offer a free tutoring service via the library. Plus there are all the wonderful internet resources to help us understand our children's homework
. Must brush up my algebra and trigonometry too.
. Some local councils offer a free tutoring service via the library. Plus there are all the wonderful internet resources to help us understand our children's homework. Must brush up my algebra and trigonometry too.
Jun 22nd 2011, 11:22 pm
#15
Gutter Gob!!
Joined: Feb 2005
Location: Perth
Posts: 13,098
Re: Algebra
Get yourselves set up on the free Mathsonline http://www.mathsonline.com.au/ - you can set up a family account and see if you can keep up with your kids. Some local councils offer a free tutoring service via the library. Plus there are all the wonderful internet resources to help us understand our children's homework. Must brush up my algebra and trigonometry too.
. Some local councils offer a free tutoring service via the library. Plus there are all the wonderful internet resources to help us understand our children's homework. Must brush up my algebra and trigonometry too.
