Tuesday
September 2, 2014

Search: substitution method 7x+9y=39

Number of results: 4,736

Maths
Using a cramers and guassian elimination method solve this; a+2b+3c=600 2a+3b+c= 900 3a+b+2c=800
March 6, 2012 by Omotimehin pelumi

Calculus
Q. Find the minimum value of Q=x^2y subject to the constraint 2x^2+4xy=294. Its the derivative method.
March 15, 2012 by help

Maths
Solve:- 5ax+6by=28 , 3ax+4by=18 using cross multiplication method
April 27, 2012 by Ashley

Economics
In 1000 BC, the Chinese people used Cowry shells as a method of currency. Why is this significant?
April 29, 2012 by Labz

child care management
A teaching method that uses computers to help children learn is called ?
May 12, 2012 by jennifer

psychology
In aversive conditioning, therapists attempt to reduce undesirable behaviors using which method?
June 18, 2012 by Anonymous

physics
i want a simple laboratory method of determining a young modulus of a long thine wire
August 21, 2012 by ahmad muhamad chul

Scientific method
Are these people a worker in a farm? Which is the Independent and Dependent variable and Control group.
August 31, 2012 by Nia

Algebra....HELP!!
Use the elimination method to solve the system of equations a + 6b =4 a + 3b = -2 What is the solution in an ordered pair?
September 9, 2012 by Theresa

chemistry
How to balance simple oxidation-reduction reactions by the half-reaction method. Mg (s) + N2 (g)= Mg3N2 (s)
September 30, 2012 by ron

Math
Solve by using the subatitution method. (Please keep fractions as they are, don't convert to decimal.) 1. y= -3x - 1 2x - 3y= -8 2. 1 + 3y= 10 5x + 2y= 6 3. 2x - 6y= -2 x= 3y - 1 4. y= 1/7x + 3 x - 7y= -4
October 3, 2012 by Neil

alegbra 1
Solve the following systems of linear equations using algebraic method. 1)3y=11-2x 3x=y-11 2)8x-6y=14 12x-9y=18
October 31, 2012 by Janet

math
1)d/dx of cos4x/3-x^2(inculding quentient&chain rule) 2)sin^2x/1+cosx(same method)
November 14, 2012 by ani

Math
Find the value of each expression using the pemdas method. 5(to the second power)+8 divided by 2
December 9, 2012 by Mary

maths --plse help me..
solve the following equation by method of completing the perfect square:- 4x^2 + 4 √3 x +3=0
December 13, 2012 by Anonymous

World history; HELP
Help please? 6.Do you think that the Zhou Dynasty’s downfall resulted from its method of control? Why or why not?
January 18, 2013 by Alfredo

pre algerbra
Please solve the system with the elimination method. Explain each step as it is performed. 5y = x 2x - 3y = 7
February 13, 2013 by Laura

MATH
USE THE AC METHOD FACTORING 9+^2+5+-4 CAN SOME ONE SHOW ME THE STEP TO SOLVING THIS PROBLEM
February 21, 2013 by mace

algebra
Solve the following system of equation using the graphing method. Y = negative X Y = X + 9 Don't know what to do. Thank u if u can helpme.
March 2, 2013 by Josie

Chemistry
Describe an experimental method for the estimation of oxalate in the product, potassium trioxalatoaluminate(III)
March 7, 2013 by ESPINE

math
I have to add 1+2+3+4+5.....all the way to 1000. What method should I use to solve it?
July 7, 2013 by Celest

College Algebra
Solve system by method of elimination 0.07x + 0.02y =-0.07 0.08x - 0.06y = 0.07
July 24, 2013 by Jack

Chemistry
An aqueous solution is 1.33 molality in method determine the amount fraction of methenal and water
August 10, 2013 by Aman

bio 11
must the steps in the scientific method always be followed in the same order? Explain.
September 4, 2013 by alyssa

Algebra
Help I'm stuck I need to factor a trinomial expression using the AC method 15x^2 + 31x + 2
November 1, 2013 by Tracy

chemistry
what is another way you could determine the enthalpy of formation of magnesium oxide beside the experimental method?
November 25, 2013 by Anonymous

reading romeo and juliet
theme: revenge method: verbal irony only 3 examples
May 31, 2014 by reina bonilla

chemistry
Balance by oxidation method the SO2 + MnO4+H2O --MnSO4+H2SO4+SO4(-2)
July 7, 2014 by alex

math
solve using any appropriate method 0.05x+0.25y=99 0.15x+0.05y=108
August 10, 2014 by Keya

calculus
what is the answer for the integral of (1/(xln(x)) from 1 to infinity? I first found the integral using u substitution- so u=ln(x) and du=1/x*dx this gave my du/u,leading to the ln(u) =ln(ln(x)) from 1 to infinity then I did the limit as t approaches infinity of 1/(tln(t)) - ...
February 6, 2008 by sarah

accounting
How depreciation and amortization affect the income statement and the profitability of the company as well as its affect on the income taxes a company pays. Also the advantages of an accelerated method of depreciation and how that affects net income, the balance sheet,AS WELL ...
September 24, 2008 by cathy h

geometry
If PQ=3 and PQ+RS=5, then 3+RS=5 is an example of the ___________. A. multiplication property of equality B. reflexive property of equality C. transitive property of equality D. substitution property of equality
October 3, 2007 by bob

organic chemistry
a careless organic chemistry student was performing "competing nucleophiles in nucleophilic substitution reactions" experiment , and left his container of tert-butyl chloride and tert-butyl bromide open to the air for several hours. what happened to the composition of the ...
October 22, 2012 by lyly

science
Discuss the importance of each step in the scientific method. Why do you think scientists utilize this type of experimentation and reasoning? (Broken Link Removed) Discuss the importance of each step in the scientific method. Why do you think scientists utilize this type of ...
March 5, 2007 by Trenet

Chemistry
In the experiment of Nucleophilic substitution reactions: Competing Nucleophiles 1)what would happen if all the solids in the nucleophile medium were not dissolved? How might this affect the outcome of the experiment? 2)Explain the order of elution you observed while ...
February 16, 2010 by Jennifer

chemistry
write the equations for the substitution reaction of methene with bromine under the following conditions. a) reaction in the presence of sunlight CH4+Br2 sunlight=? b) reaction in the absence of sunlight CH4+Br2 =?
November 22, 2011 by denis

Chemistry
Propose a method for determining the specific heat for a metal like sodium that reacts with water?
September 14, 2007 by Dick Rogers

science
What is the order analytical method fundamental to ? I know two of them are taxonomy, biochemistry. I need to know the third one.
September 15, 2007 by richard

Chemistry
Propose a method for determining the specific heat for a metal like sodium, which reacts with water.
October 15, 2007 by M

Chemistry
Propose a method for determining the specific heat for a metal like sodium, which reacts with water.
October 15, 2007 by M

chemistry
how do I know the ion value of elements on the production side of the equation when balancing with the electron transfer method?
November 14, 2007 by stephanie

College Calculus
Write a trial solution for the method of indetermined coefficients: y''+9y' = xe^(-x)cos(pi*x) ....I have no idea.
February 3, 2008 by Jayme

calculus
You are using Newton's method to solve x^3-5x-2=0. If your first guess is X1=2, what value will you calculate for the next approximation X2?
March 2, 2008 by Anonymous

health
Dry heat is the best method of sterilizaion to disinfect medical instruments I said True
April 22, 2008 by Anonymous

business communication
Suggest options for presenting information audience. Which method do you think is the most effective?
May 14, 2008 by Jaz

algebra/math
use the FOIL method to perform the multiplication. (x^1/2-2)(x^1/2+4) I can not seem to find the answer to this problem. Can anyone help? Thank You!
September 26, 2008 by Ashley

algebra/math
use the FOIL method to perform the multiplication. (x^1/2-2)(x^1/2+4) I can not seem to find the answer to this problem. Can anyone help? Thank You!
September 26, 2008 by Ashley

Financial Management
In using the internal rate of return method, it is assumed that cash flows can be reinvested at
December 1, 2008 by Anonymous

math
what method do you use to solve a number line starting at 0 three blank integers and the fourth is 68?
January 15, 2009 by Naomi-Eliana

science
How do you seperate a mixture of iron and sulphur by means of a phsyical test without using a method
February 11, 2009 by Jeanne

9th grade
one method that the sumerians used to survive and overcome the limitations of their geographical enviroment was?
February 27, 2009 by ricardo

5TH GRADE MATH
HOW DO START A LESSON PLAN USING THE LATTICE METHOD AND HOW WOULD IT BE TEACHED?
March 19, 2009 by JOSEFINA

algebra
Find all real or imaginary solutions to equation. Use the method of your choice. w^2=-225
July 20, 2009 by Jessica

Algebra
Find all real or imaginary solutions to equation. Use the method of your choice. 3v^2+4u-1=0 reposting for help
July 21, 2009 by Jessica

math
using method of partial fractions to decompose this 1/(x-3)(x+3) is 1/6(x-3)-1/6(x+3) correct or have i gone wrong somewhere
October 24, 2009 by mousey

Algebra
What is the best method for Solving equations with variables on both sides? This is the problem: 1(6x-x)=162+12x
November 1, 2009 by Britny

Algebra
please help me!! Solve by elimination method: 3r - 5s = 6 5r + 3s = 44 I thought that I could do vertical addition,when I do, I get 8r - 2s = 50...........but none of the variables are eliminated.
November 23, 2009 by ggift

worl history
one method that the sumerans used to survive and overcome the limitations of their geographical environment was
November 29, 2009 by agustin

Algebra
Using the Gauss-Jordan method need to determine the coefficients a,b,c of the quadratic equation x=ax squared +bx+c y=5.4 and x=8
December 13, 2009 by mike

math
"Find a quick and easy method to compute the sum of the first 100 counting numbers."
February 6, 2010 by Terri

chemistry
State one method of preparing oxygen in the lab and wrte a balanced equation for the reaction
March 11, 2010 by +2347034420247

Chemistry
What is a reasonable discussion of the method for the preparation of a sample of lead iodide and hygrated copper sulphate?
March 17, 2010 by Gillian

Chemistry
Why is it important to use liquids with relatively lower boiling points when using the Dumas method?
April 1, 2010 by Jen

Chemistry
Why is it important to use liquids with relatively lower boiling points when using the Dumas method?
April 1, 2010 by Help

math/algebra
solve by additon method, tell whether the equation is dependent,independent, or consistent. 1. x-y=3 -6x=6y=17 2. 3/7=5/9=27 1/9 = 2/7 =7
April 5, 2010 by ann

Math
I do not understand how to decide which method would you use to determine whether this proportion is true or false? 19/6=4/27
April 11, 2010 by Bart

adult education
using the half angle method solve the triangle for whick the given parts are a=27 b=21 and c=24
April 14, 2010 by sam

math
I'm completely lost withhow u solve this quadratic equation using the square root method 6x^2=1
April 18, 2010 by Jason

Math
Please I need to solve this problem Use the elimination method 0.3x -0.2y=4 0.5x + 0.3y=1 Plesae help I am competely lost!!!
July 20, 2010 by upbeat

chemistry II
What are the steps to balancing Redox reactions using the Valence method. thanks> ex problem: NH3+O2 -->H2O +NO
October 17, 2010 by Taylor

Statistic
If we use the ÷2 method of analysis to test for the differences among 4 proportions, the degrees of freedom are equal to: A) 3 B) 4 C) 5 D) 1
October 24, 2010 by Anonymous

math
solve using the elimination method. If the system has no solution or infinite number of solutions a state this 4x-6y=30 3x-5y=24
February 16, 2011 by nicholas

chemistry
Ag+HNO3-----AgNO3+NO+H2O balance the redox reaction using the oxidation-number method
February 20, 2011 by sally

chemistry
describe an alternative method to prepare a 0.2M potassium phosphate buffer using KH2PO4 and KOH
February 27, 2011 by kabelo

math
Find the general solution using the method of undetermined coefficients. y''' - 10y'' + 25y' = e^(-x) cos x + e^(5x) + x.
May 8, 2011 by Shane

Algebra
Solve by elimination method. 5x+y=1 10x+12y=2 Please Help I can't seem to figure this one out.
May 15, 2011 by Crisanta

Algebra
Solve by elimination method. 5x+y=1 10x+12y=2 Please Help I can't seem to figure this one out.
May 15, 2011 by Crisanta

physics
how would you measure the resistance of an electrical device, such as a lamp, by the voltmeter-ammeter method?
May 17, 2011 by kriti

physics
why we cannot use visible light for studying the crystal structure using Bragg’s diffraction method?
May 19, 2011 by diwakar

maths
The method for completing the square can be used to write the expression -2x^2+12x-5 in the form a(x+b)^2 +c, where a,b, and c are constants. What is the value of c? Thank you for any help.
May 20, 2011 by Trevor

mathematics
by prime factorisation method find the least positive number divisible by 700 and 364
May 21, 2011 by Anonymous

physical chemistry
the aprroximate method to solve the shrodringer equation for hydrogen like atom? Please help, thank
June 4, 2011 by bun

Physics
How do you solve this using the component method? 56n, northwest + 38n, 75 degrees east of north
August 27, 2011 by Sabbie

scientific method and measurement 8th Hons science
what allows results to be verified to maintain credibility?
September 12, 2011 by hannah

Scientific Method sort of relating to science
What are Two Factors that can affect how fast water evaporates?
December 13, 2011 by Samanth

Chemistry
What method would you use to separate salt, sand , marble chips and iron nails?
January 6, 2012 by Anonymous

greek philosophy and history
How are Aristotle's teachings related to the scientific method used by scientists today?
January 21, 2012 by im_a_h8r_n_luvin_it(only hate certain people)

math
Discuss the relationship between the FOIL method for multiplying polynomials and the distributive property of multiplication.
February 3, 2012 by Leo

Biology
Why can this statement not be evaluated by the scientific method "Trees emit psychic screams when you cut them down."?
February 15, 2012 by Anonymous

cal
Use Euler's method with step size0.4 to estimatey(2) , where y(x) is the solution of the initial-value problem y'=4x+y^2, y(0)=1. . y(2)=
March 12, 2012 by carlton

calculus 2
Use euler's method with step size 0.2 to estimate y(1), where y(x) is the solution of the initial-value problem y'= -3x+y^2, y(0)=1
March 13, 2012 by Geminese

calculus 2
Use euler's method with step size 0.2 to estimate y(1), where y(x) is the solution of the initial-value problem y'= -3x+y^2, y(0)=1
March 13, 2012 by Geminese

calculus
Use Euler's method with step size 0.2 to estimate y(1), where y(x) is the solution of the initial-value problem. y' = 5x + y^2, y(0)=-1.
March 14, 2012 by Carlton

CAL 2
Use Euler's method with step size 0.2 to estimate y(1), where y(x) is the solution of the initial-value problem y'=5x+y^2, y(0)=-1 y(1)=
March 15, 2012 by Josh

Cal
Use Euler's method with step size 0.2 to estimate y(1), where y(x) is the solution of the initial-value problem. y' = 5x + y^2, y(0)=-1. y(1)=
March 15, 2012 by McClain

Calculus- please help
Q. Find the minimum value of Q=x^2y subject to the constraint 2x^2+4xy=294. Its the derivative method.
March 15, 2012 by Samantha

Res/341
what are some ways to reduce bias in focus groups or any data collection method?
March 23, 2012 by anita

Algebra
Discuss the relationship between the FOIL method for multiplying polynomials and the distributive property of multiplication.
August 28, 2012 by John

pre calculus
Algebraically solve the system of equations using any method you wish 3x-10y+z=5 -4x+9y-z=-6 -13y+z=2
October 7, 2012 by Natasha

Math-Calculus
Volume using disk method: x=.000574y^(2)-.439y+185 Interval: (0,500)
December 6, 2012 by Kimberly

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