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#126 Re: Help Me ! » Z Score » 2011-05-13 09:24:20
Hi survival;
Having some things to deal with at home has tied me up today.
I am getting .16, the actual answer is .1591, I have rounded it the hundredths.
Hello, I pulled up this problem and the actual answer was. 0.164.
Ya know something? I also noticed that the ones, I missed parts of, were mistakes that I made from not reading the problem correctly or just silly stupid mistakes that was negligence on my part. I knew them all in the one that had the cereal box, yet came out with 85.6.
I saw that cereal problem a lot of times and missed the thing every time I encountered it. 
Nonsense! Actually, once I even asked the instructor to explain it to me. The mind can only hold so much until it rests and then begins again.
#127 Re: Help Me ! » Z Score » 2011-05-08 01:59:59
Hello,
I will find something later. Up all night watching movies on the lap top. Now, I sleep.
PS Oh, I remember. It was the first problem I posted about the cereal. The very first, I think.
#128 Re: Introductions » Hello » 2011-05-07 20:47:28
Welcome Ba11le.
#129 Re: Help Me ! » Z Score » 2011-05-07 20:34:36
hello,
well, it's done from that chart that has area and z scores. It gives the area. Then usually when the equation is near being solved, you subtract an unknown number from the one you have from the area to arrive at the z score. It's all from the chart, but never close to the area you find. If that makes any sense. It's not what he or she wants, it's the solution to the equation.
#130 Re: Help Me ! » Z Score » 2011-05-06 11:05:05
I read it incorrectly. It wanted rounding to the thousandth and I think I put it in as a tenth.
What exactly do you subtract when the z score is not on the chart, as in--in between? How do you know what to subtract from the equation to get the correct answer?
#131 Re: Help Me ! » Z Score » 2011-05-05 19:52:13
Good evening. How are you? Any more math left?
I am just tired that is all. No more math for now, but I will still visit the board. This is board where you can learn, and I like that.
ps. the answer about the cereal was off just a little, but that is okay.
#132 Re: Help Me ! » Z Score » 2011-05-05 19:50:04
Thanks, i figured it out.
#133 Re: Help Me ! » Z Score » 2011-05-05 15:07:54
T/Y and good evening.
#134 Re: Help Me ! » Z Score » 2011-05-05 13:22:47
bobbym, where are you?
#135 Help Me ! » Z Score » 2011-05-05 07:59:51
- survival
- Replies: 42
The box of cereal again:
A box of cereal contains 458 g with a standard deviation of 10.02. Find that the jar contains more than 468 g. Assume normal distribution. Use a z - score rounded to the hundreds.
The probability that the cereal contains more than 468 g. is_______________
T/Y 
#136 Re: Help Me ! » Finance-Compound Interest » 2011-05-04 15:50:17
Hey, just dropping by. I hope you are around in a bit, may have a few equations to work out. Guess it is getting closer to time for a vacation. May go home to dig in the creek, sure need a change of scenery. It was a stressful day, hope yours was a good one.
#137 Re: Help Me ! » Triangle to find BCD » 2011-05-04 14:40:40
Hello, Well, not many tests left. This is it nearly. LOL
#138 Re: Help Me ! » Finance-Compound Interest » 2011-05-03 16:59:34
Hi survival;
The question is a little confusing and easy to misinterpret.
If you want to know how much you have to invest to save that amount in 10 years you are correct. Your investment should be $117483.9968
You might want to round that to $117484
Yes, it is all confusing at first. I am still learning.
#139 Re: Help Me ! » Finance-Compound Interest » 2011-05-03 11:26:14
Bobby, tell gar to sign in soon. My numbers clash with his.
house 1- to get the dp over a period of 10 yrs using that formula:
$117,483.9968
house 2-$35588.71949
house 3- $3009.239235
I did not round yet.
The cars
car 1: I get different numbers on this one
car 2: $596.2141075
car 3: $357.1238 No rounding thus far (this thing is due in the morning)
All used by the formula P = A (1 + .06/12)^-120 (that is the second minus sign on the T-184
#140 Re: Help Me ! » Triangle to find BCD » 2011-05-03 08:40:31
gAr has answered your finance question. He is a good man with accurate results.
I am sorry you did not finish the picture. Next time you are in here I will try show you how. Tell me how you do on your exams.
Thanks, I will let you know. I have tomorrow and a test on stats/other class test yesterday was a tough one. Too many numbers upstairs to think straight.
#141 Re: Help Me ! » Triangle to find BCD » 2011-05-03 08:35:32
Yes, that's the one except the line is turned to the right. I did finally get the right answer after I flipped the problem and it gave me a new one. I still don't understand it but it is correct now.
Yours solution was correct too.
#142 Re: Help Me ! » Finance-Compound Interest » 2011-05-03 08:23:30
Thank you for replying, gAr.
I am working on this right now.
That's exactly what I needed. We are using the formula you used A = P (1 + r/m) ^n.
My instructor checks these figures with Excel and I had read that you knew Excel.
I now have to figure down payments of 3 cars, so if you check in please reply to this. It's all at 6% interest compounded using that same formula for 10 years (120.
Car 1 down payment: $18,235.00
Car 2 " 1,084.75
Car 3" 357.12
I am using a calculator for this. Please go through those 3 cars and see what you come up with. Appreciated and thank you!
Here is how I'm typing it into the calculator:
last car:
357.12(1 + .06/12) ^-120 =_____ (My instructor said to use the lower - sign on the calculator and not the regular - sign.)
#143 Re: Help Me ! » Triangle to find BCD » 2011-05-02 17:49:25
sorry, i didn't get to finish it. This is my last week and i have finals, etc.
#144 Re: Help Me ! » Triangle to find BCD » 2011-05-02 16:56:22
I have one day to find out how to finance a down payment by savings accrued monthly over ten yrs. at 6 %. It is the last part of my three projects. I got perfect score on the second part, first part just so so.
There are 3 fantasy houses. Well two fantasy houses and one that a person would settle for.
#145 Re: Help Me ! » Triangle to find BCD » 2011-05-02 16:54:08
Five is a lot. wow. I have never been on any of the others. I would worry them I suppose. LOL
#146 Re: Help Me ! » Triangle to find BCD » 2011-05-02 16:38:53
what do you online besides math?
#147 Re: Help Me ! » Triangle to find BCD » 2011-05-02 15:59:38
ok, will see how it goes. thank you.
#148 Re: Help Me ! » Triangle to find BCD » 2011-05-02 15:49:37
oh and the due date is tomorrow night i think. LOL
#149 Re: Help Me ! » Triangle to find BCD » 2011-05-02 15:48:34
oh me, that is a fraction. Won't work. I have messed with this problem for days on and off. Kept clicking over to a new one, and the last part is the hold up. I am sure it's simple. I want to take geometry someday. I like this stuff.
#150 Re: Help Me ! » Triangle to find BCD » 2011-05-02 15:36:24
it keeps turning into another type of triangle.
Tell ya what. Just solve the equation and i will figure out the last three parts. How's that?
(72 + 11x) + (41 + 6x) = (92 - 24x)