Mathematics - 5 October 2007

A farmer has twenty animals including goat, baffelo and cows. He takes 40 kg milk from these animals daily. If one goat (z)give 0.25 kg milk, one baffelo(x) give 5 kg milk and cow(y) give 2kg milk in one time. can any body tell that how much animal of each kind he has?
Actually I made two equations but I need third equation to solve it.
equation 1 is 5x+2y+0.25z=40
equation 2 is x+y+z=20
x , y or z cannot be equal to 0

2007-10-05 23:12:47 · 4 answers · asked by Ali 1

answer if you are very confident. tq

2007-10-05 23:01:41 · 4 answers · asked by Anonymous

If Kandise put $9,000 in a savings account which had a interest rate of 2% which was compounded annually, how much would be in that account after 8 years? How much would he have earned?

2007-10-05 20:59:38 · 3 answers · asked by 511@ 4

2007-10-05 20:26:29 · 2 answers · asked by das 1

can you please answer this question and maybe explain

two boats leave san diego at the same time. one boat sails due north and the other due west. when they are 10 miles apart, the boat traveling north has sailed 2 miles farther than the boat sailing west. find the distance each boat has traveled.

2007-10-05 20:25:02 · 5 answers · asked by David 1

1. __, 1, 5, 2, 8, 3, 5, __, 4, 5, 1, 4

2. 12, 57, 31, 14, 51, 138, 16, 71, 18, __, __, __

3. 34, 22, 89, 63, __,41, 12, __, 64, 92, 25, __

4. 31517, 114, 9111113, 148, __, __

5. 11534, 11343, 26828, 821135, __

Thanks in advance.

Colin

2007-10-05 20:07:10 · 3 answers · asked by colin_aye 1

for x=5Q/(3+Z)

Show that cross partial derivatives are equall

2007-10-05 19:52:17 · 3 answers · asked by Anonymous

Can someone tell me how to find the derivative of the function x^1/2 (3−2 x^2) over x?

f(x)= x^1/2 (3−2 x^2)
--------------------
x

2007-10-05 19:32:05 · 3 answers · asked by Anonymous

2007-10-05 19:17:11 · 4 answers · asked by nowaytoyou 1

I have 8 balls , 7 are of equal weights and one is heavier that the 7, Now I give u all the 8 balls,
How many iteration u take to tell which one is heavier ....
u are allowed to use weighing machine...

2007-10-05 18:40:47 · 9 answers · asked by Anney 1

In this exercise we estimate the rate at which the total personal income is rising in a metropolitan area. In 1999, the population of this area was 900,700, and the population was increasing at roughly 9500 per year. The average annual income was $31,775 per capita, and this average was increasing at about $1400 per year (a little above the national average of about $1225 yearly). Use the Product Rule and these figures to estimate the rate at which total personal income was rising in the area in 1999.

2007-10-05 18:28:05 · 1 answers · asked by ILuvTaraReid 2

stupid math i ******* hate math! im working on a math problem that says 10 oIo 6 1/2, the answer i got was
1 5/22 but the right answer is 1 13/22. can someone help me?

" oIo " this represents the division sign.

2007-10-05 18:16:06 · 5 answers · asked by chaff 1

Book B is twice as long as Book A.
Book C is 30 pages longer than Book B.
Together the books have 280 pages.
How long is book C?
How do i solve this to get the answer to be 130?
Please show me step by step.

2007-10-05 18:15:57 · 7 answers · asked by persevere 2

hello i'm in 9th grade in Algebra 2. I need help on these if possible!

How do you factor the expressions completely:

1) 9y^2 - 16


2) 15w^2 - 2w - 24


3) 2m^3n + 5m^2n^2 + 2mn^3


please show steps!! you don't have to answer all if you don't know =P

2007-10-05 17:53:20 · 5 answers · asked by Anonymous

Using synthetic division, find

a. the quotient
b. remainder, and
c. whether or not it's a function.

f(x) = 4x^4 - 15x^2 - 4
g(x) = x + 2

-----

So, c = -2. When I do the division, it should come out to 2 | 4 0 -15 0 -4.

Where do the zeros come from? How do I find the correct quotient? Please explain. Thanks.

2007-10-05 17:52:36 · 1 answers · asked by labelapark 6

2007-10-05 17:40:07 · 7 answers · asked by Jameelah 1

Please help me prove this identity. I really need the step by step solution of this problem. thank you!

2007-10-05 17:37:13 · 1 answers · asked by victoria 2

x + y + z = 10
x*y*z = 10

2007-10-05 17:04:25 · 6 answers · asked by MATH!!!! 2

Here is my best guess. Just so you don't think you're doing my homework. I am looking for confirmation of my answer.

vertex is at (3, 1)
http://www.mackendrick.com/images/vertex.jpg

2007-10-05 16:37:51 · 3 answers · asked by Talriada 2

Can someone tell me if this is correct: Find the value of the polynomial -x^2-3x-1 when x=-4

-1(-4)^2+3(-4)-1
-1(8)+(12)-1
-8-12+1
-20+1
=19
Is this correct??

2007-10-05 16:24:22 · 22 answers · asked by tricey7578 2

how many MB go into a GB?????????

Spencer,

2007-10-05 16:03:01 · 6 answers · asked by Anonymous

2007-10-05 15:40:42 · 2 answers · asked by AshUK 1

find the center, vertices, foci, and asymptotes of the hyperbola.
I). [(y^2)/9] - [(x^2)/1] = 1

II). x^2 - 9y^2 + 36y - 72=0

2007-10-05 15:40:08 · 3 answers · asked by confusedkid 3

A ball of radius 12 has a round hole of radius 9 drilled through its center. Find the volume of the resulting solid.

2007-10-05 15:37:11 · 2 answers · asked by Anonymous

2007-10-05 15:36:52 · 2 answers · asked by Brandon F 1

Let a and b be elements of a group G. Assume a is not equal to e, |b| =2, and bab^-1 = a^2. How can I find |a|??

2007-10-05 15:16:51 · 2 answers · asked by Anonymous

1)19 + (-8h + h)
2) 2w(8w =15)

only simplify is needed (impossible to solve anyways)

thnx!

2007-10-05 15:11:14 · 3 answers · asked by <3 3

2007-10-05 15:09:13 · 6 answers · asked by sixthstring 2

holiday maths homework but have no idea what to do.

3x + y = 2
4x + y =6

the book says: "Eliminate one variable by adding or subtracting the equations and hence solve the simultaneous equation".
what the hell is a variable!!

2007-10-05 15:07:47 · 7 answers · asked by St Darling ♥s Pantera 5

In calculus, is there a way to see if the derivative and the second derivative are correct either by graphing or using the calculator? i can find the derivative rather easily but is there a way to make sure i did it correctly?please help

2007-10-05 14:36:13 · 4 answers · asked by maxpowerrys 1