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  Quick Math question solution |
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1st Lieutenant
Posts: 4,235
Join Date: Dec 2002
Location: Austell, Ga
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Quick Math question solution -
08-27-2004, 04:11 PM
ok this is a simple math problem problem that im having trouble with plz help.
ok
3/4 y - 1/4 y= 5
ive tried 2 different solutions and still cant find the answer. cuss:
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2nd Lieutenant
Posts: 3,527
Join Date: Jan 2002
Location: Laguna, Beach woowow Posts: 18463
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08-27-2004, 04:13 PM
you lost me... what kind of math is this? Just algebra solving for y? What are the underscores for? And the numbers on the top and bottom?
EDIT: nvm you editted it
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2nd Lieutenant
Posts: 3,527
Join Date: Jan 2002
Location: Laguna, Beach woowow Posts: 18463
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08-27-2004, 04:17 PM
y=10
3/4y - 1/4y = 1/2y
then
1/2y=5
so 5/.5 = 10
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Senior Member
Posts: 6,541
Join Date: Feb 2003
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08-27-2004, 04:17 PM
is 1/4 and 3/4 a fraction, or is it 4 divided by 3 etcs
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1st Lieutenant
Posts: 4,235
Join Date: Dec 2002
Location: Austell, Ga
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08-27-2004, 04:19 PM
Quote:
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Originally Posted by jujumantb
y=10
3/4y - 1/4y = 1/2y
then
1/2y=5
so 5/.5 = 10
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aight, thanks man.
These are some of the basic problems that we'll be tested on in the actual GED test. Simple enuff eh? I suggest you all stay in school |
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Major General
Posts: 13,482
Join Date: Jun 2002
Location: University Park, PA
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08-27-2004, 04:21 PM
Quote:
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Originally Posted by Fireal
is 1/4 and 3/4 a fraction, or is it 4 divided by 3 etcs
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that shouldn't really matter. Fraction bars mean division. |
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Senior Member
Posts: 1,337
Join Date: Jul 2004
Location: Nashvegas
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08-27-2004, 05:00 PM
it equals 2.5
3\4y - 1\4y=5
subtract them
1\2y=5
divide 1\2y by 1\2 and do the same to 5
thus
y=2.5
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Senior Member
Posts: 2,345
Join Date: Apr 2002
Location: Detroit, MI
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08-27-2004, 05:10 PM
[quote="@/\/G3L":583a4]it equals 2.5
3\4y - 1\4y=5
subtract them
1\2y=5
divide 1\2y by 1\2 and do the same to 5
thus
y=2.5[/quote:583a4]
oOo:
y=10
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2nd Lieutenant
Posts: 3,527
Join Date: Jan 2002
Location: Laguna, Beach woowow Posts: 18463
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08-27-2004, 05:15 PM
[quote="@/\/G3L":9c7b9]it equals 2.5
3\4y - 1\4y=5
subtract them
1\2y=5
divide 1\2y by 1\2 and do the same to 5
thus
y=2.5[/quote:9c7b9]
close, but 5 divided by 1/2 = 10 not 2.5. You are mulitpying when you should be dividing
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Major General
Posts: 13,482
Join Date: Jun 2002
Location: University Park, PA
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08-27-2004, 05:19 PM
keywords: Order of Operations
Please Excuse My Dear Aunt Sally (Paranthases, exponents, mult./division, addition/subtraction)
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Senior Member
Posts: 8,792
Join Date: Apr 2002
Location: Hans-AlbinVonReitzenstein
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08-27-2004, 05:27 PM
Quote:
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Originally Posted by Coleman
keywords: Order of Operations
Please Excuse My Dear Aunt Sally (Paranthases, exponents, mult./division, addition/subtraction)
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Please Shut The Fuck Up Right Now (Please Shut The Fuck Up Right Now).
happy: biggrin: |
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Major General
Posts: 13,482
Join Date: Jun 2002
Location: University Park, PA
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08-27-2004, 06:08 PM
Quote:
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Originally Posted by Judas
Quote:
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Originally Posted by Coleman
keywords: Order of Operations
Please Excuse My Dear Aunt Sally (Paranthases, exponents, mult./division, addition/subtraction)
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Please Shut The Fuck Up Right Now (Please Shut The Fuck Up Right Now).
happy: biggrin: |
i wish they taught that to us in 5th grade. the_finger: |
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Senior Member
Posts: 340
Join Date: Nov 2002
Location: The Hammer
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08-27-2004, 06:23 PM
I Agree the answer is 10. Both sides of the equation bust be multiplied by 2 to isolate the y. Multiplying the left side of the equation leaves you with y, and multiplying the right side of the equation leaves you with 10. Thus y=10.
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Sergeant
Posts: 1,149
Join Date: Feb 2003
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08-27-2004, 07:41 PM
just make all the denominators the same and its easy oOo:
( 3y - 1y = 20)
(2y = 20)
(y=10)
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Senior Member
Posts: 1,337
Join Date: Jul 2004
Location: Nashvegas
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08-27-2004, 08:48 PM
wtf didnt see that other y. oOo: yep its 10.
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