Mathematics - 20 September 2006

algebra..
1B) 2/3 w 1/-4 = 3/4 + 1/2

and the other one is like this

2A)1/2 (16z - 12) =1 /3 (12z -9)


i have no clue what to do, if you do try them please show your work it will be great if you had links so i can get more practice thanks .

2006-09-20 13:23:47 · 5 answers · asked by plz help me 1

When Connor is twenty-two years older than he was when he was one-half his present age, he will be forty-three less than three times as old as he is now. How old is Connor?

I can't think of how to setup the equation to solve how old Connor is. Any help would be greatly appreciated. : ) thanks in advance.

2006-09-20 13:23:10 · 8 answers · asked by Ryan 1

I need help on a problem, if anyone can help. the problem is: Write an equation of the circle that has center (2, 4) and passes through the point (6,7). any help would be nice!

2006-09-20 13:22:34 · 5 answers · asked by Anonymous

is it 15 or 120?? ... math isn't my stronghold

2006-09-20 13:20:42 · 8 answers · asked by david p-p-preut 1

suppose that the charges for a cell phone bill are $0.50 for the first minute and $0.25 for each additional minute. assume that a fraction of a minute is rounded up. how do i find a formula for a function "f" that computes the cost of a call that is "x" minutes long, where 0 < x <= 5? but writing it in a piecewise-constant fuction?

an explanation would be greatly appreciated and thanks for the help

2006-09-20 13:18:32 · 4 answers · asked by shih rips 6

x + 3y = 10

3x - 6y = 15

2006-09-20 13:14:00 · 3 answers · asked by honest abe 4

In a variable expression, when a negative is changed into a positive because something is added to it, does the "-" sign turn into a "+" sign?

For example in this variable expression

-7a+3a-3c+5c

I know the first step is to add 7a and 3a which equals -4a

and then you add 5c to negative 3c which equals 2c

Is the final answer supposed to look like this: "-4a-2c"

or is it supposed to look like this because the 2c is now a positive?: "-4a+2c"

2006-09-20 13:09:42 · 7 answers · asked by RaphaelDeLaGhetto 2

4v - 16 = 8v

2006-09-20 13:05:41 · 5 answers · asked by King Math 1

2006-09-20 13:05:19 · 8 answers · asked by jose h 2

1/4 (z - 4) = -3/4 (z + 2)

I have been stuck on this darn problem for (10) minutes and I really need to move on to my History homework.

Thanks in advance for your help!

2006-09-20 12:56:14 · 8 answers · asked by King Math 1

2006-09-20 12:53:18 · 17 answers · asked by cer 2

I really need to know why. Please give full answer.

2006-09-20 12:50:51 · 18 answers · asked by Anonymous

The clue was fictional character

2006-09-20 12:45:46 · 8 answers · asked by JennyAnn 4

there r total 14 roller coasters is it permutations or combination

2006-09-20 12:40:23 · 4 answers · asked by lolale l 1

2006-09-20 12:36:37 · 3 answers · asked by lolale l 1

when i want to take the fourth root of a number, or X. how do i get that instead of just the square root sign?

i've tried (4√X) & i got nothing.

2006-09-20 12:29:15 · 7 answers · asked by xoxo T 1

say if i ran 100 feet in 15 seconds, how would i find out my miles per hour.

2006-09-20 12:28:30 · 10 answers · asked by Tyler C 2

GOING BANANAS!

Cleopatra ("Cleo") the Camel works for the owner of a small, remote banana plantation. This year's harvest consists of three thousand bananas. Cleo can carry up to one thousand bananas at a time. The market place where the bananas are sold is one thousand miles away. Unfortunately, Cleo eats one banana each and every mile she walks.

Your Task:

Of the three thousand bananas harvested, what is the largest number of bananas Cleo can get to market?

and the answer is not 0 or 3. She can stop and drop of bananas and get more, but she even has to eat a banana for those miles she walked back.

2006-09-20 12:26:15 · 5 answers · asked by masterurownmind 5

north carolina generate with this format is thia permutation or combination

2006-09-20 12:21:13 · 4 answers · asked by Anonymous

I am working on a problem and would like to check my answer. I'd appreciate your help!

y = (x^2)/(x^2 - 4)

A. Find the limit of y as x approaches +/- infinity. I think it's 0?

B. What are the missing points in the domain? I think they are 2, -2, 0.

C. Where dy/dx is greater than 0, equal to 0, less than 0. Not sure I know what to do here...

D. What is the absolute max / min on the closed interval (0,2)? I don't understand the interval... I thought the min was 0 and max 2. I'm lost?

Thanks very much!!

2006-09-20 12:19:23 · 3 answers · asked by math dodo 2

hand shakes will take place is this permutation or combination

2006-09-20 12:10:19 · 7 answers · asked by Anonymous

400 people are surveyed, 66 are left handed, what is the percent of left handed people? I wanna understand this but its so hard.

2006-09-20 12:01:34 · 3 answers · asked by Ash1227 2

the Q,s How many puonds of apples and grapes breanda haves?

Brenda apples:6 1/4
Breanda grapes: 7/16

2006-09-20 11:48:06 · 8 answers · asked by Karen 1

what is 18% of 300?

2006-09-20 11:42:33 · 12 answers · asked by Ash1227 2

2006-09-20 11:33:33 · 27 answers · asked by cyzan 1

2006-09-20 11:22:19 · 11 answers · asked by Anonymous

-2 * -6=?

Find the (solution!) before putting the 12. Use the associative law. Also remember (- * - = +)

2006-09-20 11:10:24 · 9 answers · asked by Anonymous

2006-09-20 11:01:41 · 6 answers · asked by ? 4

how are the fractions near 0 alike
how are the fractions near 1/2 alike
how are the fractions near 1 alike

2006-09-20 10:57:25 · 5 answers · asked by naenae 1

asking

2006-09-20 10:56:14 · 16 answers · asked by kymberlee 1