Math Is Fun Forum

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

You are not logged in.

#402 Re: Help Me ! » Help!!! asap Standard normal curve » 2011-04-14 18:17:38

thank you. It asked for a percent so i just used 6.2%

#406 Help Me ! » Help!!! asap Standard normal curve » 2011-04-14 17:24:56

survival
Replies: 20

Find the percent of the total area under the standard normal curve between the following z-scores
z = - 1.4 and z = -05

#407 Re: Help Me ! » Compound Interest » 2011-04-14 09:52:52

no, i do not understand. I see some places where it is calculated with .05. There are several calculators online and some give different answers.
I put the numbers you gave me into my project. It seems such a small amount to earn over so many years.

#408 Re: Help Me ! » Compound Interest » 2011-04-14 07:22:14

see you later. i am to work for 4 hours. tomorrow i have to turn that first part of the project in. I don't think the second one will be so frustrating.
thank you for your help.

#409 Re: Help Me ! » Compound Interest » 2011-04-14 05:41:53

If it calculates 5.88 monthly from the 6%, isn't it multiplied by each month or is it already included in
the totals you have?
Your figures are accurate, I just don't know how to show the multiplication to get them. He doesn't want to see the formula again since he knows it.
Thank you

#410 Re: Help Me ! » Compound Interest » 2011-04-14 02:31:26

i will  be back. Thank you.

#411 Re: Help Me ! » Compound Interest » 2011-04-14 02:10:52

that is the formula i am asked to use. Same one for 10, 20 and 30 yr. period.

#412 Re: Help Me ! » Compound Interest » 2011-04-13 20:28:21

i will check back when i take a nap. I have to get this right or my grade is gone out the window.

#413 Re: Help Me ! » Compound Interest » 2011-04-13 20:24:04

i have to show how i got the answer. How do you show it if done on a calculator? He wants to see how a person arrives at an answer.

#414 Re: Help Me ! » Compound Interest » 2011-04-13 20:18:23

oh i see. he got that 70.56 from the entire first year. (12) the rest of it is all wrong maybe

#415 Re: Help Me ! » Compound Interest » 2011-04-13 20:15:21

well, i asked a math tutor to look at it this morning and he just glanced at it. He said the first month would be 70.56. it seems too much for one month, then go to 10, 20, 30. Something is wrong.
I can't round the 98.00. My professor would not like rounding that since it is a project with more of it over two weeks.

#416 Re: Help Me ! » Compound Interest » 2011-04-13 20:10:51

okay, maybe i got the 1.06 since it compounds monthly? This is confusing

#417 Re: Help Me ! » Compound Interest » 2011-04-13 19:55:30

I have a problem then.
If the interest is 6%, where did i get that 1.06 and how come I have such large results?

#418 Re: Help Me ! » Compound Interest » 2011-04-13 17:20:41

i am back. The 98.00 is compounded monthly.  Nothing is being added each month but interest of 6%.

$98.00 (1.06/12) 120 days
.06/12 =.005 (i don't need to use this)

1 yr. = 12 x 1.06 x 98.00 = 70.56
10 yrs. = 120 x 1.06 x 98.00 = 1246.56
20 yrs. = 240 x 1.06 x 98.00 =2493.12
30 yrs. = 360 x 1.06 x 98.00 = 37396.80

Please see if this is right. I have to turn it in. Thank you.

#419 Re: Help Me ! » Compound Interest » 2011-04-12 09:37:58

i will. i am working on 3 more class homework today besides this one

#421 Re: Help Me ! » Compound Interest » 2011-04-12 09:23:46

is this for one year? or 10 years?

#423 Re: Help Me ! » Compound Interest » 2011-04-12 08:59:21

yes so it is $98.00 X 12 (1 yr.)=$1, 176.00 before any compounded interest

#424 Re: Help Me ! » Compound Interest » 2011-04-12 08:54:13

yes it looks like it goes in there every month.

#425 Re: Help Me ! » Compound Interest » 2011-04-12 08:52:41

it is class. i have the problem to figure out.

the 98.00 is the amount i am supposed to have in my account.
the 6% is the rate that compounds monthly and they want to know how much i will have after 1, 10, 20 and 30 yrs.

Board footer

Powered by FluxBB