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December 19, 2014

Posts by donna


Total # Posts: 439

Alegbra
Thank you
February 18, 2011

Alegbra
Can this be solved? x+y=160 x=4y+9
February 18, 2011

Alegbra
Thank you
February 17, 2011

Alegbra
Why do i never get any help
February 17, 2011

Alegbra
I have a problem that I need help with can someone show me the steps LiveStock Feed- Soybean meal is 16% protein and corn meal is 9% protein. How many pounds of each shoul be mixed to get a 350-lb mixture that is 12% protein?
February 17, 2011

world histiry
what is the order of the pyramid of the japanes fuedal system
February 16, 2011

Alegbra
How would you solve this using substitution method y= 3 + x 2x + y = 8
February 16, 2011

algebra
I need to know if I am doing this problem right when sustitution method. y+2x=3 y+2x=-4 y+2x=3 -1(y+2x=3)-y-2x=-4 now add the two equation y-2x=3 -y-2x-4 the answer would be -4y=7 then divided -4=7 answer 1.75 I no that there is more to this answer I am just stuck and not sure...
February 15, 2011

algebra
I need to know if I am doing this problem right when sustitution method. y+2x=3 y+2x=-4 y+2x=3 -1(y+2x=3)-y-2x=-4 now add the two equation y-2x=3 -y-2x-4 the answer would be -4y=7 then divided -4=7 answer 1.75 I no that there is more to this answer I am just stuck and not sure...
February 15, 2011

Alegbra
Ok so let me start over. System of equation can be solved by graphing, substitution or elmination method. I only have to choose one method and I was trying the elimination method is that how my problem seems to be?
February 14, 2011

Alegbra
System of equation. substitution or elmination method??
February 14, 2011

Alegbra
yes
February 14, 2011

Alegbra
I would like to know if I did these problem right? y + 2x =3 Y +2x=-4 Y+2*x-3=0 y=2*x+4=0 If not can you show me the steps
February 14, 2011

science
A machine has a mechanical advantage of 2. This means its output force is _____. a. 0.5 times greater than the input force b. 2 times smaller than the input force c. 2 times greater than the input force d. 2 times more efficient than the input force
February 13, 2011

Algebra
Can someone help me with this one and how to find the equation? Suppose you are paying your cell phone bill. The function C(m) represents the cost C of your monthly cell phone bill with m minutes. Given the equation: What does the number 0.25 represent?
February 10, 2011

Algebra
Suppose you are paying your cell phone bill. The function C(m) represents the cost C of your monthly cell phone bill with m minutes. Given the equation: What does the number 0.25 represent?
February 10, 2011

Algebra
This is my first asking I did not do this before?
February 8, 2011

Algebra
I need toIs the following pair of lines parallel or perpendicular? Prove your answer. 2y – x = 2 y + 2x = 4 can you explain how to break this down ...
February 8, 2011

Algebra
Thank you I did not see the answer. Thank you so much
February 8, 2011

Algebra
I need toIs the following pair of lines parallel or perpendicular? Prove your answer. 2y – x = 2 y + 2x = 4 can you explain how to break this down ...
February 8, 2011

arithmetic
I am 5'2 and cast a shadow 3' long. My friend casts a shadow 3' 5" long. How tall is he?
February 4, 2011

health
Why would the task of Universal health care coverage raise health care costs?
January 31, 2011

Algebra
how do I check my answer to a problem. The problem is: x/5 - 1/2 = 3 I know the answer is 35/2 but how do you check it. 35/2 /5 - 1/2 = 3?
January 29, 2011

chemistry
How would you caculate this problem: What is the mass in grams of 150*10^12 iron atoms, each having a mass of 56 amu?
January 26, 2011

algebra
y >=-1
January 7, 2011

algebra
the xx is in the answer box, so it is x x then the answer
January 7, 2011

algebra
0.8x+1<=1.2x-8 x x
January 7, 2011

algebra
9x-7y=-49
January 7, 2011

Algebra
p(x)=x^2-2x+10
January 7, 2011

Algebra
y varies directly as x, and y=20 when x=5
January 4, 2011

Health Care
I need help with a team powerpoint on Health Care Costs and need to do 3-4 slides with speaker notes on Recommendations for Improvement
December 16, 2010

math
A foyer is 8 feet by 8 feet the tiles are 4 square feet how many tiles will fill the space
December 1, 2010

Chemistry
Cooking oil has a boiling pt of 200 degress, water is 100 degrees. explain theses facts given the strength of waters hydrogen bonds
November 30, 2010

patients records
what is an accreditation agency and name an area of records management that is affected by its guidelines.
November 23, 2010

Chemistry
AgCl--->Ag^(+)+Cl^(-) AgNO3= 2E^-4L*0.15mol/L AgNO3/(.01L)=mol/L AgNO3=mol/L Ag^(+)=.003M Find Ksp(AgCl) in solubility constant table Ksp(AgCl)=1.77E-10 1.77E-10=[.oo3M Ag(+)][Cl^(-)] solve for Cl^(-) Cl^(-)=5.9E-8M 5.9E-8mol/L*.01L in tank * mm 35.453 g/mol=2*10^-8 g
November 20, 2010

College Algebra
This is my problem I need help with. (7,-8); 3x+5y=6
November 17, 2010

Chemistry
What is [OH-] of a solution containing 013 mol Ba(OH)2 and .021 mol KOH in .50L of H2O?
November 13, 2010

Intermediate Algebra
if a system has an infinite number of solutions, use set-builder notation to write the solution set. If a system has no solution, state this. m - 2n = 16, 4m + n = 1
November 11, 2010

Intermediate Algebra
If a system has an infinite number of solutions, use set−builder notation to write the solution set. If a system has no solution, state this. y = x + 2, 3y − 2x = 4
November 11, 2010

chemistry
3 Fe + 4H2O= Fe3O4 + 4H2
November 4, 2010

chemistry
At 900 degrees C, Kc for the reaction is 5.1. if .050 mole of H20 and .100 mole of Fe are placed in a 1L container at 900 degrees C, how many grams of Fe3O4 are present at equilibrium?
November 4, 2010

MATHS
Complete the pattern. 1,1,4,25,--------,749956 Thanks for your help
October 27, 2010

math
George saves 18% of his total gross weekly earnings from his 2 part-time jobs. He earns $6.25 per hour from one part-time job and $7.50 per hour from the other part-time job. George works a total of 40 hours between the two jobs each week. What additional information is needed...
October 22, 2010

Math
complete the pattern: 1, 64, 2 ,32, 4, 16, ___ , ____.
October 18, 2010

Statistics
What are the most prudent decisions Avionics, Inc.can make about it's responsibilities to itself and others?
October 17, 2010

6th grade english/pronouns
This might help: Personal pronouns, Possessive determiners, Possessive pronouns Personal pronouns Possessive determiners Possessive pronouns as subject(nominative)as object (accusative and dative) I me my mine you you your yours he him his his she her her hers it it its its we...
October 17, 2010

algerbra
the length of a rectangular jewlery box is 6 inches more than twice the width. the perimeter is 54 inches find length and width.
October 12, 2010

math 115
b) The representative tells you that floor plan #1 sells for $300,000 and floor plan #2 sells for $200,000. She also mentions that all the available houses combined are worth $3,300,000. Write an equation that illustrates this situation. Use the same variables you used in part...
October 6, 2010

math 115
I am stuck with this problem can some let me know how to work this problem please help me The representative tells you that floor plan #1 sells for $300,000 and floor plan #2 sells for $200,000. She also mentions that all the available houses combined are worth $3,300,000. ...
October 6, 2010

math 115
I am stuck with this problem can some let me know how to work this problem please help me The representative tells you that floor plan #1 sells for $300,000 and floor plan #2 sells for $200,000. She also mentions that all the available houses combined are worth $3,300,000. ...
October 6, 2010

MATHS
How many minutes before 12 noon is it, if one hour ago it was three times as many minutes after 8 am? Thank you
October 6, 2010

Math 116
Is this correct so far...I just want to know if I am doing this.. b) The representative tells you that floor plan #1 sells for $300,000 and floor plan #2 sells for $200,000. She also mentions that all the available houses combined are worth $3,300,000. Write an equation that ...
October 6, 2010

Alegbra 115
Is this correct so far...I just want to know if I am doing this.. b) The representative tells you that floor plan #1 sells for $300,000 and floor plan #2 sells for $200,000. She also mentions that all the available houses combined are worth $3,300,000. Write an equation that ...
October 6, 2010

math 115
dID IU do this right not sure and I thank you for helping ahead of time... 1. Suppose you are in the market for a new home and are interested in a new housing community under construction in a different city. a) The sales representative informs you that there are two floor ...
October 6, 2010

college biostatistics
if the mean bp is 110 and the standard deviation is 15 where would 95% of population be
October 3, 2010

Finance
"An investor is proposing to buy shares in XYZ company. XYZ company is expected to an annual dividend of $2.50 per share. The current share price is $50.00. If the investor requires an annual rate of return of10%, what must the share price be in 1 yr?.
September 28, 2010

math
how is it possible for a triangle to have angles of 90, 50 &60
September 28, 2010

math
three circles are externally tangent to each other. The radius of each circle is 6 inches. Find the following: a)the length of the shortest wire athat goes around them. b) the shaded area (space between them when stacked one circle on top of two)
September 26, 2010

Alegbra 115
thank you so do you think the way I did is also right
September 25, 2010

Alegbra 115
I have been trying this on my own and just want to know if this is right are not 2. Suppose that the linear equation y = 0.3x + 0.9 represents an estimate of the average cost of gas for year x starting in 2002. The year 2002 would be represented by x = 1, for example, as it is...
September 25, 2010

english
what are the similarities between "A Rose for Emily" and "Blu Winds Dancing"
September 20, 2010

math
5x-6y=12
September 12, 2010

math 115
You are planning to spend no less than $8000. and no more than 12,000 on your landscaping project. Write an inequality that demonstrates how much money will be willingto spend of the project
September 7, 2010

Math 116
What is an inequality
September 7, 2010

Math
how do I solve: -1 cubed-(-1)to the fourth +(-1) to the fifth - (-1)to the sixth thanks
August 31, 2010

9th grade
two of the forms of a linear equation are standard form and slope-intercept form. explain when each one is more useful
August 26, 2010

MATHS
The sum of three consecutive multiples of 3 is 36. The smallest of the three will be.....? answer is 9
August 19, 2010

math
What is the teacher wanting. 10,13,17,22,.........................25
August 16, 2010

5th grade
Ellie works at a camp. Her age is a multiple of 6 and a multiple of 8. what is the youngest age Ellie could be?
August 12, 2010

math
P (-1.3 less than or equal to Z less than or equal 0) P (-1.3 ¡Ü Z ¡Ü 0)
August 7, 2010

math
P(Z greater than 2.5)
August 7, 2010

random variables
For the standard normal random variable Z, compute the following probabilities. For the following problems, use four decimal places. 16. P (0 ¡Ü Z ¡Ü .9) 17. P (-1.3 ¡Ü Z ¡Ü 0) 18. P(Z > 2.5) 19. P(Z ¡Ý -.75) 20. P(Z...
August 2, 2010

college
if a license plate consists of 2 letters followed by 4 digits, how many different plates could be created having at least one letter or digit repeated? I know its not 6,760,000
July 30, 2010

Statistics
1-5 the question is asking if these they can be found in a linear programming model? I couldn't use the symbols of greater than or equal to because it makes a weird symbol after I post the question.
July 30, 2010

Statistics
Which of the following mathematical relationships could be found in a linear programming model? Choose YES if the relationship could be, and NO if it could not. A. YES B. NO 1. B-2A + 7B = 45 2. 4A - B less than or equal to 10 3. A + \ 2B greater than or equal to 22 4. 3A + ...
July 30, 2010

Statisics
Max 2A + 7B s.t. A + B greater than or equal to 12 2A + 2 B less than or equal too 26 B greater than or equal to 1 A, B greater than or equal to Which of the following would be found in the correct standard form? A. YES B. NO A + B - S1 = 12 2A + 2B - S2 = 26 2A + 2B + S2 = 12...
July 30, 2010

linear programming
For the linear program Max 2A + 7B s.t. A + B greater than or equal to 12 2A + 2 B less than or equal too 26 B greater than or equal to 1 A, B greater than or equal to Which of the following would be found in the correct standard form? A. YES B. NO A + B - S1 = 12 2A + 2B - S2...
July 26, 2010

Linear programming
Which of the following mathematical relationships could be found in a linear programming model? Choose YES if the relationship could be, and NO if it could not. A. YES B. NO 1. B-2A + 7B = 45 2. 4A - B less than or equal to 10 3. A + \ 2B greater than or equal to 22 4. 3A + ...
July 26, 2010

Math-linear programming
sorry the question goes with the one before this question
July 26, 2010

Math-linear programming
the exclamation Y, the symbol is actually greater than or equal to: A + B greater thanor equal to 12 2A + 2B less than or equal to 26 B greater tha or equal to 1 A, B greater than or equal to
July 26, 2010

Math-linear programming
Max 2A + 7B s.t. A + B ¡Ý 12 2A + 2 B ¡Ü 26 B ¡Ý 1 A, B ¡Ý
July 26, 2010

Math-linear programming
Which of the following mathematical relationships could be found in a linear programming model? Choose YES if the relationship could be, and NO if it could not. A. YES B. NO 1. B-2A + 7B = 45 2. 4A - B ¡Ü 10 3. A + \ 2B ¡Ý 22 4. 3A + 2B - AB = 12 5. 2A2...
July 26, 2010

Math-linear program
For the linear program Max 2A + 7B s.t. A + B ¡Ý 12 2A + 2 B ¡Ü 26 B ¡Ý 1 A, B ¡Ý Which of the following would be found in the correct standard form? A + B - S1 = 12 2A + 2B - S2 = 26 2A + 2B + S2 = 12 A - S3 = 1 B - S3 = 1 2A...
July 26, 2010

algebra2
minus
June 27, 2010

algebra2
i dont think there is a solution for this one. 3-y=1 _____ 4-y y-4 help please
June 27, 2010

algebra2
y-6= 2/7 ____ y+4
June 27, 2010

algebra2
its suppposed to be y=
June 27, 2010

algebra2
y-6 bottom number y+4 and then 2 with a lind on bottom and 7
June 27, 2010

algebra2
y-6=2 y+4 _= help 7
June 27, 2010

sociology
I need a 200 page story describing how the yanomamo indians relate to a concept in the sociology book
June 27, 2010

History 125
Create a five to seven-point bullet point list of the factors that led to political stalemate and the subsequent farmer's revolt in the late 19th century
June 8, 2010

college
Find the slope and the y-intercept of the line, 5x=8y+72
June 2, 2010

Business
For a continuous random variable x, the population mean and the population standard deviation are 80 and 15 respectively. You extract a sample of 25 elements from this population. The mean of the sampling distribution of the sample mean is
May 16, 2010

math
At a party, there were 105 handshakes. If each person shook hands exactly once with every other person, how many people were at the party?
April 22, 2010

HCA/220
How might a foundation in medical technology help you in fulfilling your education? How might a basic understanding of medical terminology benefit you personally?
April 21, 2010

science help please
Asexual reproduction is reproduction which does not involve meiosis, ploidy reduction, or fertilization. Only one parent is involved in asexual reproduction. Sexual reproduction involves processes like meiosis and fertilization to pass a combination of genetic materials to ...
April 15, 2010

Social Studies
Farmers¡¦ Revolt „h Create a bullet point list of the factors that led to political stalemate and the subsequent farmers¡¦ revolt in the late 19th Century. Adress the relationship between the issues the political system dealt with in the Gilded ...
April 12, 2010

College Chemistry
A 0.05 molal aqueous solution boils at 373.102 K. What is the salt in question? a. AlCl3 b. NaHSO3 c. MgCl2 d. NH4Cl e. NaCl I guessed NH4Cl and got 3 points off. I used the formula delta T=K boiling point X molality
March 28, 2010

College Chemistry
The boiling point of a liquid at atmospheric pressure is the temperature: a. at which bubbles of vapor expand within the liqud b. at which the liquid solidifies c. at which the vapor pressure first exceeds the critical temperature d. at which the vapor pressure is equal to the...
March 28, 2010

college Chemistry
An aqueous solution of hydrogen peroxide, H202 (MW=34.01amu), is labeled 10.0% by weight. What is the molal concentration of H202? All I really know is that molality = moles of solute per kilogram of solution
March 28, 2010

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