Math Is Fun Forum

  Discussion about math, puzzles, games and fun.   Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ • π ƒ -¹ ² ³ °

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#101 2011-04-19 15:53:04

survival
Member
Registered: 2011-04-03
Posts: 655

Re: Standard normal curve

No, they want the solution set from that one. smile And thank you.

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#102 2011-04-19 15:55:05

survival
Member
Registered: 2011-04-03
Posts: 655

Re: Standard normal curve

Yes this one is written correctly. They just want solution set.

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#103 2011-04-19 16:00:48

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

Re: Standard normal curve

Hi survival;

I am getting, x = 42 / 17.


In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

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#104 2011-04-19 16:32:21

survival
Member
Registered: 2011-04-03
Posts: 655

Re: Standard normal curve

let me see if it takes. I was thinking the answer had to be denominator of 42. be right back.

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#105 2011-04-19 16:33:45

survival
Member
Registered: 2011-04-03
Posts: 655

Re: Standard normal curve

You are exactly right. I had typed in 42/12, which was wrong, yours was right.:)

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#106 2011-04-19 16:37:06

survival
Member
Registered: 2011-04-03
Posts: 655

Re: Standard normal curve

Let's see. Here's one with decimals. 0.04(y + 9000) = 1440.  They want a solution set.
I can stay up about another forty minutes. Then I can get enough sleep hopefully. I hope tomorrow is not a repeat of Monday.

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#107 2011-04-19 16:45:15

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

Re: Standard normal curve

Hi survival;

.04 * 9000 = 360 so;

Subtract 360 from both sides.

Divide by .04 on both sides.

y = 27000


In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

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#108 2011-04-19 16:48:30

survival
Member
Registered: 2011-04-03
Posts: 655

Re: Standard normal curve

hey I just one right. haha funny

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#109 2011-04-19 16:51:58

survival
Member
Registered: 2011-04-03
Posts: 655

Re: Standard normal curve

i am going to try to work a decimal one.
0.30 (6) + 0.05x = 0.15 (6+x)

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#110 2011-04-19 16:52:29

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

Re: Standard normal curve

You got it right? Very good!


In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

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#111 2011-04-19 16:59:28

survival
Member
Registered: 2011-04-03
Posts: 655

Re: Standard normal curve

did u learn this in school or was it inherited?

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#112 2011-04-19 17:10:29

survival
Member
Registered: 2011-04-03
Posts: 655

Re: Standard normal curve

I hope I am not keeping u from doing other stuff. You sure have helped with my math.

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#113 2011-04-19 17:16:29

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

Re: Standard normal curve


In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

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#114 2011-04-19 17:29:01

survival
Member
Registered: 2011-04-03
Posts: 655

Re: Standard normal curve

i have survived more than math in my time. that's why i chose the name when i found this site. I am trying to survive math this time.

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#115 2011-04-19 17:31:11

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

Re: Standard normal curve

Did you click the button marked "survival only"?


In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

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#116 2011-04-19 17:35:57

survival
Member
Registered: 2011-04-03
Posts: 655

Re: Standard normal curve

where?

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#117 2011-04-19 17:38:31

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

Re: Standard normal curve

Post # 113 is an answer to your question.

survival wrote:

I am trying to survive math this time.

We need to have a talk about that. If you read what I wrote in post # 113 than you will see that math is everywhere. The world is becoming increasingly technical. Old jobs are disappearing. There are a number of people in here that had to go back to school to learn math because their lifelong occupation no longer exists.


In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

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#118 2011-04-19 17:43:16

survival
Member
Registered: 2011-04-03
Posts: 655

Re: Standard normal curve

here or under another topic?

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#119 2011-04-19 17:44:28

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

Re: Standard normal curve

Right here in this topic. Click the button marked survival only.


In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

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#120 2011-04-19 17:46:28

survival
Member
Registered: 2011-04-03
Posts: 655

Re: Standard normal curve

I had a professor in historical geology and physical geology a couple of semesters. He said that math and sciences were the only professions that would not hurt. He said math and the sciences are short in demand for qualified people.
I have to brag because I am so stupid in math, but I got two semesters of A's in those two classes.

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#121 2011-04-19 17:47:34

survival
Member
Registered: 2011-04-03
Posts: 655

Re: Standard normal curve

So you are surviving too? It is the way of life and nothing in life is ever easy except getting in debt.

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#122 2011-04-19 17:51:40

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

Re: Standard normal curve

Our country is 27th in the world in science and lower than that in math. You did not get my point. Math does not go away. It is only going to become more prevalent. Like I said trades disappear. What happened to me in my fields should not happen to anyone else.


In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

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#123 2011-04-19 17:54:26

survival
Member
Registered: 2011-04-03
Posts: 655

Re: Standard normal curve

Were you in the field of math or science? If so, then you should have a really good paying employment.

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#124 2011-04-19 17:56:14

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

Re: Standard normal curve

If you would have clicked that button you would already know the answer to that question.


In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

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#125 2011-04-19 17:56:16

survival
Member
Registered: 2011-04-03
Posts: 655

Re: Standard normal curve

I wanted to be a scientist when i was a kid. The stars fascinated me, but when I got into high school, i found out i could not do math required for college. And so that dream didn't happen.

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