Off the Court Lounge Basketball fans talk about everything EXCEPT basketball here

09-07-2006, 07:44 PM
#1
Local High School Star

Join Date: Aug 2006

Posts: 1,828

OT: "Interesting" Math Question 2
Does 0.9 repeating = 1?
Case for FALSE
0.9 repeating doesn't equal 1 because well because it is not 1 period...It is just a little less...It is the number that is closest possible to 1...It is just a little short...Basically, its just not 1...Its just a "little off"...Its just not there yet...
Case for TRUE
1. 1/3=0.3 repeating
Times both sides by 3
1=0.9 repeating?
2. What is 1-(0.9 repeating)?
0?
If its 0, then its 0.9 repeating must be 1 also...
So does
1=0.9 repeating?

09-07-2006, 07:45 PM
#2
Very good NBA starter

Join Date: Aug 2006

Location: Los Angeles

Posts: 4,114

its 0.99999999 (infinite) thus less than 1.

09-07-2006, 07:46 PM
#3
Very good NBA starter

Join Date: Jul 2006

Location: NOVA

Posts: 8,077

No..Its like an asymptote on a graph...it keeps getting closer and closer but will never reach that number. .9 repeating does not equal 1.

09-07-2006, 07:46 PM
#4
NBA Superstar

Join Date: Jun 2006

Posts: 14,986

.
this seems really obvious.

09-07-2006, 07:46 PM
#5
Local High School Star

Join Date: Aug 2006

Posts: 1,828

Quote:

Originally Posted by LakersDynasty

its 0.99999999 (infinite) thus less than 1.

What do you have to say about the 2 things for the "True" Side

09-07-2006, 07:47 PM
#6
Kids at the park dunk on me

Join Date: Jun 2006

Posts: 92

Quote:

Originally Posted by IceMan2

2. What is 1-(0.9 repeating)?

it's .0 repeating 1

09-07-2006, 07:50 PM
#7
Local High School Star

Join Date: Aug 2006

Posts: 1,828

Quote:

Originally Posted by DreamRuled

it's .0 repeating 1

Actually

1.000-.999=

.001...

Not

.011 like you have it going...

Or

1.000000-0.999999=.000001

Not

.01111

So if it was 1=0.9 repeating, then what?

09-07-2006, 07:55 PM
#8
Local High School Star

Join Date: Aug 2006

Posts: 1,828

Come on, anybody want to against the 2 Cases saying it is True?
Don't tell me
1/3 doesn't equal 0.3 repeating...You could divide 1 by 3 yourself, and you'll get an infinite amount of 0.3 repeatings...
And if you do times that by 3, you got 0.9 repeating, while 1/3 becomes 1...
And What is 1-0.9 repeating then?

09-07-2006, 07:58 PM
#9
Very good NBA starter

Join Date: Aug 2006

Location: Los Angeles

Posts: 4,114

Quote:

Originally Posted by IceMan2

Come on, anybody want to against the 2 Cases saying it is True?
Don't tell me
1/3 doesn't equal 0.3 repeating...You could divide 1 by 3 yourself, and you'll get an infinite amount of 0.3 repeatings...
And if you do times that by 3, you got 0.9 repeating, while 1/3 becomes 1...
And What is 1-0.9 repeating then?

0.000009, you get the picture.

And then they say LAUSD students are dumb.

09-07-2006, 07:59 PM
#10
Local High School Star

Join Date: Aug 2006

Posts: 1,828

Quote:

Originally Posted by LakersDynasty

0.000009, you get the picture.
And then they say LAUSD students are dumb.

Where did the

"0.000009"

come from?

What were you trying to answer with that...

09-07-2006, 08:06 PM
#11
Yes, I am a dick.

Join Date: Jun 2006

Location: East of civilization.

Posts: 3,481

Quote:

Originally Posted by IlliniFan

No..Its like an asymptote on a graph...it keeps getting closer and closer but will never reach that number. .9 repeating does not equal 1.

Yes, it's like this:

Take a point that is 20 feet from a wall, you move it half the distance to the wall (10 ft), if you keep halfing your distance, you will never reach the wall.

09-07-2006, 08:08 PM
#12
Local High School Star

Join Date: Aug 2006

Posts: 1,828

Quote:

Originally Posted by Timmeh

Yes, it's like this:
Take a point that is 20 feet from a wall, you move it half the distance to the wall (10 ft), if you keep halfing your distance, you will never reach the wall.

Yes...But can you answer the reasons it can be True?

09-07-2006, 08:12 PM
#13
Yes, I am a dick.

Join Date: Jun 2006

Location: East of civilization.

Posts: 3,481

Quote:

1. 1/3=0.3 repeating
Times both sides by 3
1=0.9 repeating?

This isn't true because multiplying 1/3 by 3 = 1, but 0.3 by 3 = 0.9, they don't equal because fractions in some cases, like 1/3, are just rounded decimals.

Quote:

2. What is 1-(0.9 repeating)?
0?
If its 0, then its 0.9 repeating must be 1 also...

1-0.9 is 0.1 repeating.

09-07-2006, 08:15 PM
#14
Local High School Star

Join Date: Aug 2006

Posts: 1,828

Quote:

Originally Posted by Timmeh

This isn't true because multiplying 1/3 by 3 = 1, but 0.3 by 3 = 0.9, they don't equal because fractions in some cases, like 1/3, are just rounded decimals.

1/3 = 0.3 repeating exactly...not 0.3 period...

What math are you in?

1.000-0.999 is NOT

0.111 like you have things working out....

its 0.001....

Think about what I just told you there

So lets ask again...

What is 1-0.9 repeating...

09-07-2006, 08:17 PM
#15
Very good NBA starter

Join Date: Aug 2006

Location: Los Angeles

Posts: 4,114

Quote:

Originally Posted by IceMan2

1/3 = 0.3 repeating exactly...not 0.3 period...
What math are you in?
1.000-0.999 is NOT
0.111 like you have things working out....
its 0.001....
Think about what I just told you there
So lets ask again...
What is 1-0.9 repeating...

Is it 0.000001 repeating Teacher?

This NBA Basketball News Website Sponsored by:

Posting Rules
You may not post new threads

You may not post replies

You may not post attachments

You may not edit your posts

HTML code is Off

All times are GMT -4. The time now is 01:17 AM .

NBA Basketball Forum Key Links:
InsideHoops Home
NBA Rumors
Basketball Blog
NBA Daily Recaps
NBA Videos
Fantasy Basketball
NBA Mock Draft
NBA Free Agents
All-Star Weekend
---
High School Basketball
Streetball
---
InsideHoops Twitter
Search Our Site
---