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50 articles trouvés pour ce sujet.
The mass of a durian 2018-04-14
REEVASSHINIE pose la question :
A watermelon with a mass of 5 kg and two durians with the same mass are placed on an electronic balance.If the reading shown on the balance is m kg,write an expression for the mass of a durian
Penny Nom lui répond.
Joining a fitness center 2016-12-18
Salem pose la question :
A fitness center offers a special price for group-class students. The cost of registration is 30 dollars and then you have to pay 25 dollars per month. What is the rule of the equation in the light of

Penny Nom lui répond.
Proof that an erroneous algebraic statement is false 2015-12-14
Berteanu pose la question :
I need help with this proposition:
"It exists x a real number that for every y real number 5*x-2*y*y=1
This is false.
Let x be from R.
And I need an y real number that 5*x-2*y*y!=1
Please,could you help me?

Penny Nom lui répond.
I was wondering what xy means. 2015-09-30
Eric pose la question :
I was wondering what xy means. My two things I think it means are the two digits of x and y or x times y. thanks for your time, Eric
Penny Nom lui répond.
{(1+x)^1/3-1/3X(1+x)^-2/3}/(1+x)^2/3 2013-06-17
STEPHEN pose la question :
Penny Nom lui répond.
A silver figurine 2013-05-03
Renee pose la question :
I have a silver figurine, the density of silver is 10.5g/cm3. if the figurine weighed 149 g. to determine the volume, he dropped it into a cylindrical glas of water. the diameter of the glass is 6 cm and the figurine was pure silver, by how much should the water level in the glass rise?
Penny Nom lui répond.
An algebraic exercise 2013-03-18
autumn pose la question :
given: f(x)=x/(x^2+2) determine: [f(x-h)-f(x)]/h
Penny Nom lui répond.
7x-1/4-1/3[2x -1-x/2]=19/3 2013-02-03
M pose la question :
7x-1/4-1/3[2x -1-x/2]=19/3
Penny Nom lui répond.
Forming an algebraic expression 2012-10-27
ashley pose la question :
A sidewalk has a constant width W and comprises several short sections having lengths 12, 14,and 10 feet. How do I find the simplified expression that gives the number of square feet of sidewalk?
Penny Nom lui répond.
Find an algebraic expression 2012-10-03
Karen pose la question :

Question from Karen, a parent:

Find an algebraic expression relating the input and output.

input output
3 1
9 3
15 5
21 7
27 9

Penny Nom lui répond.
-8(3x+4)+6x=4(x-8 )+4x 2012-01-18
bianca pose la question :
-8(3x+4)+6x=4(x-8 )+4x
Penny Nom lui répond.
What does 2xy mean? 2011-12-07
dana pose la question :
I don't know what is 2xy what does that mean? is it 2x+2y or 2x times y Please help! thank you for your time!! :)
Penny Nom lui répond.
An algebraic equation with fractions 2010-09-10
leah pose la question :
If 6/x - (x-1)/2 = 4 then the LCD is 2x, right? so you get 12/2x - (x2-x)/2x = 8x/2x, right? then what do you do with the 2x when you turn it into a quadratic equation?
Penny Nom lui répond.
Algebraic Equations 2010-08-10
Justin pose la question :
the amount of money that Mika has if she has some quarters

how fast Rya runs if she runs 5 mi/h slower than Danae
please help,
thanks, justin

Robert Dawson lui répond.
An algebraic fraction 2010-06-28
luis pose la question :
Stephen La Rocque lui répond.
Which values of x satisfy (x-2) / (x+4) <7 2010-05-23
Rocco pose la question :
Which values of x satisfy (x-2) / (x+4) <7
Harley Weston lui répond.
(x+1)(x+2)(x+3)/(x+1)(x+2) 2010-05-19
Nazrul pose la question :
Simplify : (x+1)(x+2)(x+3)/(x+1)(x+2)
Which answer is correct:
(i) x+3
(ii) (x+2)^2(x+3)
Please help me.

Harley Weston lui répond.
Algebraic fractions 2010-04-22
rory pose la question :
Robert Dawson and Harley Weston lui répond.
A rectangle problem 2010-04-12
Charlene pose la question :
The ratio of the width to the length of a certain rectangle is equal to the ratio of its length to the difference between its length and twice its width. If the area of the rectangle is 25cm^2, then what are its dimensions? Present a non- algebraic solution?
Tyler Wood lui répond.
divide the product of 'x' and '3y' by '2z' 2010-01-19
shradheya pose la question :
write all fall using variable ,number, and basic operation

1. divide the product of 'x' and '3y' by '2z'.

Penny Nom lui répond.
The area of a rectangle 2009-08-21
roxanne pose la question :
the dimensions of the rectangle: 3x length and 4x width. What is the area of the rectangle in square units?
Penny Nom lui répond.
x^3+1/x^3=18*sqrt(3) 2009-07-08
Nazrul pose la question :
If x^3+1/x^3=18*sqrt(3) then how can I evaluate the value of x+1/x? Thank you for your help.
Robert Dawson lui répond.
An algebraic exercise with fractions and radicals 2008-11-18
Rubén pose la question :
Question from Rubén, a teacher:

I have the ecuation:

U = [yb / (ab+a^2)]^1/2 + [ya / (ab+b^2)]^1/2

I know for sure this reduces to

U = [y (1/a + 1/b)]^1/2

but I cannot find a way to get into that result!


Rubén Osuna lui répond.
Algebraic equations with fractions 2008-11-07
John pose la question :
Solve each equation. Check each solution.
10/2y+8 - 7y+8/y(squared)-16 = -8/2y-8

Harley Weston lui répond.
Solve the equation 2x + y = 6 for y. 2008-11-07
fatiuma pose la question :
Solve the equation 2x + y = 6 for y.
Penny Nom lui répond.
Algebraic fractions 2008-10-06
Kayla pose la question :
(x^2-9)/x times (x^3-4x)/(x^2+5x+6)
Harley Weston lui répond.
Adding fractions 2008-09-17
amanpreet pose la question :
please can you help me to simplify:

2(c-3) / 7 + 3(4c-2)/2

Penny Nom lui répond.
An algebraic expression 2008-08-29
Antonio pose la question :
write a variable expression for 9 less than k
Penny Nom lui répond.
multiply = 3a - 3b by a+b 2008-07-15
chaleen pose la question :
multiply = 3a - 3b by a+b
Penny Nom lui répond.
x=(-14x+16)/x-8 2008-06-11
Kory pose la question :
Solve the equation.

Penny Nom lui répond.
Algebraic fractions 2008-02-21
sergio pose la question :
how to simplify
(x^2 +5x+6)/(x^2 - 4) x (x^2 -5x+6)/(x^2-9)

Stephen La Rocque lui répond.
Subtracting two algebraic fractions 2008-02-17
Willie pose la question :
Subtract and express the answer in simplest form. 5x-3/6-x+3/6
Penny Nom lui répond.
Sum and difference of cubes 2008-01-30
Amanda pose la question :
It has been a really long time since I was in Algebra and I can't remember how to factor cubes such as x^3 +81 or subtracting/adding fractions with variables such as [1/(x+h)+2]-[1/x+2]. Please help!!!
Penny Nom lui répond.
The quotient of thirty and ten times a number. 2007-09-02
Jenna pose la question :
I need help on How to translate a phrase into an algebraic expression: The quotient of thirty and ten times a number.
Penny Nom lui répond.
Adding algebraic fractions 2007-08-14
John pose la question :
Ive completely forgot anything to do with the subject mentioned, so my question is straight to the point..

I need to know how to do the following problem (Preferably do not give me an answer though) (k/3k-8) - (4/k+2)

Penny Nom lui répond.
Algebraic EquationsAx+By=C 2007-07-02
Juan pose la question :
The general "Standard" form of an equation is Ax+By=C. Re-Write this equation in slope-intercept (y=mx+b) form.
Harley Weston lui répond.
Coefficients, constants and like terms 2005-10-05
Elizabeth pose la question :
In the equation -8y+6ab+7-3ab what are the coefficients; the like terms and constants?
Penny lui répond.
2x/x^2-9 - 6/x^2+x-12 2005-09-27
Emily Ann pose la question :
2x/x2-9 - 6/x2+x-12
Penny Nom lui répond.
6x+7=8x-13 2005-09-27
A student pose la question :
show me how to do 6x+7=8x-13
Penny Nom lui répond.
14p - 8 = 22 + 20p 2005-09-27
Tiffany pose la question :
14p - 8 = 22 + 20p
Penny Nom lui répond.
x = (y^2 - b^2)/2b 2005-09-04
Bob pose la question :
while looking at x=(y2-b2)/2b on a table I was preparing for a graph, I saw that there is a point where x and y get closer to each other's value. By trial and error I tried to find the point where x=y. I saw a number which looked familiar and I realized it was the square root of 2. and so, if y=b(1+square root of 2) then x=b(1+square root of 2) also, or as x=y.
My question is: How can this result x=y when y=b(1+square root of 2) be algebraically derived from the equation x=(y2-b2)/2b without pre knowing it is so?

Penny Nom lui répond.
3A/4 +1=(2A-1)/3 2005-08-21
Rachael pose la question :

I'm doing a practice test question and the answer I keep turning out is different from the answer on the answer sheet. I think I might be forgetting a step. The problem is:

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

The answer is -16. If anyone could explain the steps to me to getting the answer I would be grateful. Whenever I do it I get something completely different.

Penny Nom lui répond.
Solve for x 2005-07-20
Ed pose la question :
(x-1)/3 - 1 = (x + 2)/2
Penny lui répond.
Adding algebraic fractions 2002-03-20
Dolores pose la question :
I get totally confused with this problem. I get confused with the getting the lowest terms.

4/x-5 + -2/x -10/x^2-5x

Penny Nom lui répond.
Simplify this expression 2002-02-26
Francine pose la question :
2X power 5 Y power 3 times 18 X power -5 Y power -3 divided by X power 1/3 Y power 1/4.

I came up with
     36 ---------- X 1/3 Y 1/4 
The book says 36 x1/3 y1/4.
I don't get it.

Penny Nom lui répond.
Adding algebraic fractions 2002-01-23
Francine pose la question :

Hello, I've come up with an answer for the following problem but it's not the same as the book's answer. However, the book has a lot of mistakes in it and I don't know if I'm doing it properly or not. Your help would be soooo appreciated. It's driving me crazy.The problem is:

  2             + 3          + 4 
---------  +  ---------  +  ---------- 
(x-1)^3        (x-1)^2       (x-1) 

[(x-1)^3 is (x-1) to power of 3 etc.]

Penny Nom lui répond.
An algebraic fraction 2001-10-25
brandi pose la question :
4x - 5
_____ =4

Penny Nom lui répond.
Simplifying algebraic expressions 2001-05-12
A student pose la question :
How do you simplify algebra expressions?
Penny Nom lui répond.
4x - [2x -(3x - 2)] = 13 2000-05-13
Teresa pose la question :
I need to find the following equation.
4x - [2x -(3x - 2)] = 13

Penny Nom lui répond.
Irrational algebraic functions 2000-02-21
Bucky Cadena pose la question :
Here is the multipart problem:

Given f(x) = x-3* squareroot of x + 4

What does the f(x) intercept equal Find the two values for which f(x) = -5 Find the one value for which f(x) = -3

Harley Weston lui répond.



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