Mathematics - 13 September 2007

I have a number (144) and know that it is 23% of a larger number. How can I calculate what that larger number is?

2007-09-13 23:58:03 · 5 answers · asked by Kim S 3

2007-09-13 23:48:38 · 14 answers · asked by Anonymous

3 + 2i
--------
3 - 2i

look at it as a fraction. thanks in advance

2007-09-13 23:46:43 · 4 answers · asked by K Rose 3

A scholarship fund is set up with a single investment of $20000 to provide an annual scholarship of $1500. The fund accrues investment at 5% per annum paid yearly. If the first scholarship is awarded one year after the investment, find the number of year for which the full scholarship can be awarded.

2007-09-13 23:42:57 · 1 answers · asked by Anonymous

I have three saving schemes i invented on my own. i have a grand plan of 5 years.
project A: itook an investement policy with an insuarance
i was told i will be paying sh 1481 every month for 5 years.that will be my total investement. in return i will paid as follows.
(a)5000 at each chrismas.
(b) on maturity of the policy i will be paid my total investment plus
7.5%x50000x5. project B: I will open an account with a bank. on the first day i deposit a shilling,second day 2 sh third day 3 shilling. this trend coninues for 365 days. each new day i deposite one more sh than yesterday untill the end of year with a final deposit of sh 365. in the second to fifth years i repeat the process again starting with one shilling again. project C: i open achildren accounts and deposite sh 100 every day for five years. if i channel all this monies from projects a,b and c to one final account. How much money will i have in that account at the end of the five years?

2007-09-13 22:18:06 · 3 answers · asked by Omar 1

It's been many MANY years since I did maths at school and I can't remember if the Diameter is from half way from the centre of a circle to the edge or if it's straight across from one side to the other.

2007-09-13 22:12:02 · 23 answers · asked by Mikey B 2

I know this might be silly, but this has been bugging me. I had to do this problem and it looks simple, but I'm lost for words. I might be over looking something, but I just can't seem to figure it out. In the problem I need to subtract 1 from 0.36 which = 0.64

Another way to look at it, as shown in the book is:

1-(0.36) = 0.64

How is this the answer? It doesn't make any sense to me. I know it's the answer because I checked using a calculator, but I want to know how you arrive at this answer step by step. Please help, if anyone knows how you get this answer.

2007-09-13 21:57:56 · 12 answers · asked by Anonymous

2007-09-13 21:57:27 · 5 answers · asked by Anonymous

In quadrilateral ABCD, lines AD and BC are parallel. M is the midpoint of AB. S is the area of ABCD. Find the area of triangle DMC in terms of S.

2007-09-13 21:53:38 · 2 answers · asked by Morgan 3

It tells me to take my protein, then something about X4.
So should I multiply 80 grams of protein by 4 to get the amount of calories from it? Then after that there is a column that says "percent of diet" how do I figure that out?

2007-09-13 21:40:50 · 4 answers · asked by Anonymous

How do you find the molar mass of 450 grams of Na2SO4

2007-09-13 21:30:04 · 2 answers · asked by Dhoopy 3

2007-09-13 21:26:15 · 8 answers · asked by choklate613 1

2007-09-13 21:24:35 · 5 answers · asked by choklate613 1

A large pizza costs $12.75; three friends decide to split one. Jack takes a third, and then Jill
takes a third of the remainder, and then Tom takes half of what’s left.
(a) How should they split the total cost so that each pays an amount proportional to what he has
eaten so far?
(b) Can they split the remaining pizza so that everyone ends up having eaten the same total
amount? If so, how?

2007-09-13 21:22:33 · 3 answers · asked by SuperAwesomePhunThyme 1

Please and thank you.

PROVE THAT

[1 - cosx over sinx] + [ sinx over 1- cosx] = 2 cosecx

2007-09-13 21:14:26 · 2 answers · asked by Anonymous

lim [ (1 / t ) - ( 1 / ( t^2 + t ) ) ]
t-->0

____


lim (sqrt ( 28 - x ) - 5) / (sqrt (19 - x ) - 4)
x-->3

______

2007-09-13 20:40:01 · 3 answers · asked by Rrrr0001 1

How do we do it? What is the condition to find what is orthogonal or not? Please help. Thanks in advance!

2007-09-13 20:34:28 · 2 answers · asked by Harry 1

(continuation)
Find their present ages.

2007-09-13 19:59:06 · 5 answers · asked by nutellafella 1

pls. help! thnx thnx.

2007-09-13 19:32:04 · 12 answers · asked by nutellafella 1

can someone explain to me how you would find the solutions for this equation?


x^2-8x+3=0

2007-09-13 19:27:21 · 4 answers · asked by yofosho 1

Can anyone help?

2007-09-13 19:26:03 · 4 answers · asked by Michelle 1

y=2x-2
5x-3y=3

and

y=2x+7
2x+7y=1

PLS. EXPLAIN HOW U FOUND ANSERS, 10 POINTS!!! :) THANKS!

2007-09-13 19:15:07 · 11 answers · asked by chris b 1

Solve. 15=5y

2007-09-13 19:10:43 · 10 answers · asked by Lisa T 1

is { } equivalent to {0}?
i think its not because the other set has 1 element in it which is zero.

2007-09-13 19:01:40 · 1 answers · asked by the worr e ore 5

Hi,
Thanks for reading my question.


the question is ,
Convert equation x^2-y^2-2z^2=4
to A ) cylindrical coordinates
B) spherical coordinates

Thanks so much for your help

2007-09-13 18:50:19 · 2 answers · asked by Anonymous

1/2 - x/5=2


3/4 + x/3=6


3 - 2x/5 + 3x/4 =2

if possible explain or give details on how to solve for x.

most detailed gets point

2007-09-13 18:35:24 · 4 answers · asked by Anonymous

2007-09-13 18:34:37 · 3 answers · asked by ☆MoNicA☆ 2

Is it possible to draw the following triangles ? If not explain why.
a) An obtuse scalene
b) An acute scalene
c) A right scalene
d) An obtuse equilateral

2007-09-13 18:15:54 · 3 answers · asked by Anonymous

The length of a rectangular garden is three times its width; if the area of the garden is 75 square meters, what are its dimensions?



THANKS EVERYBODY

2007-09-13 18:08:02 · 4 answers · asked by crackr 3

2007-09-13 17:52:58 · 1 answers · asked by jennifer f 1