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Why do you like elimination better than substitution when solving system equations?
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What are two symbolic techniques used to solve linear equations and which do you feel is better?
Elimination and substitution are two methods.
How do you decide whether to use elimination or subsitution to solve a three-variable system?
There is no simple answer. Sometimes, the nature of one of the equations lends itself to the substitution method but at other times, elimination is better. If they are non-linear equations, and there is an easy substitution then that is the best approach. With linear equations, using the inverse matrix is the fastest method.
Why is it important to know various techniques for solving systems of equations and inequalities?
It is important to know several techniques for solving equations and inequalities because one may work better than another in a particular situation.
Where do you use formulating equations in life?
well, if you know all the formulating equations it will make you better at regular equations and regular equations can be used in everyday life
What does x and y equal and the equation for x for 2x - 4y equals 3.8 and 3x - y equals 17.7?
Try a system of equations and substitution, or elimination here. 2X - 4Y = 3.8 3X - Y = 17.7 I will try elimination -3(2X - 4Y = 3.8) 2(3X - Y = 17.7) -6X + 12Y = -11.4 6X - 2Y = 35.4 ----------------------------add 10Y = 24 Y = 12/5 Put into one of original equations for X 3X -(12/5) = 17.7 3X = 201/10 X = 67/10 --------------- check 2(67/10) - 4(12/5) = 3.8 67/5 - 48/5 = 3.8 19/5 = 3.8 3.8 = 3.8 checks for that one, you check the other. Hint change to fractions, or decimals for better handling. My TI-84 can do this easily, but I do not know your calculator or capabilities
What are two symbolic techniques used to solve linear equations and which do you feel is better?
Elimination and substitution are two methods.
How do you decide whether to use elimination or subsitution to solve a three-variable system?
There is no simple answer. Sometimes, the nature of one of the equations lends itself to the substitution method but at other times, elimination is better. If they are non-linear equations, and there is an easy substitution then that is the best approach. With linear equations, using the inverse matrix is the fastest method.
What are the pros and cons of using the substitution or elimination method in equations?
A pro for solving equations through graphing can allow one to visualize problems which can allow one to make better sense to the problem. However, fractions, and decimals can be very difficult to plot accurately. Furthermore, solutions could fall outside of the boundaries of a graph making them impossible to see with a graph. A pro for solving equations through either the methods of substitution and elimination allow one to achieve an exact answer regardless of fraction, decimal, or integer. However, by using these methods one will have a more difficult time with visualization without the use of a graph.
Why is it important to know various techniques for solving systems of equations and inequalities?
It is important to know several techniques for solving equations and inequalities because one may work better than another in a particular situation.
What are 2 symbolic techniques used to solve linear equations and which is better?
There are more than two methods, and of these, matrix inversion is probably the easiest for solving systems of linear equations in several unknowns.
How does playing an instrument make1 better at math?
Playing an instrument has been attributed to better problem solving skills. This is very helpful in the solving of complex math equations. For this reason and many more Learning an instrument is beneficial to young minds.
Who is better young dro or Jay-Z?
I'm not sure but both not very good at sailing, skydiving and solving fourth order equations.
Where do you use formulating equations in life?
well, if you know all the formulating equations it will make you better at regular equations and regular equations can be used in everyday life
Where do math books get their equations from?
The equations in math textbooks are of two types: 1) Equations like (a+b)^2 = a^2 +2ab + b^2. This is a formula, rule or theorem which tells you how to square a binomial. These theorems have been proven and collected over hundreds of years by mathematicians. 2) Find the solution set to x^2 + 5x -14 = 0. There are hundreds of equations in the exercise sets of any math text. The authors of the text make them up, and organize them so that they gradually get harder, and you can get better at solving them as you go through the exercises. ( The answer is { -7, 2 }. )
What does x and y equal and the equation for x for 2x - 4y equals 3.8 and 3x - y equals 17.7?
Try a system of equations and substitution, or elimination here. 2X - 4Y = 3.8 3X - Y = 17.7 I will try elimination -3(2X - 4Y = 3.8) 2(3X - Y = 17.7) -6X + 12Y = -11.4 6X - 2Y = 35.4 ----------------------------add 10Y = 24 Y = 12/5 Put into one of original equations for X 3X -(12/5) = 17.7 3X = 201/10 X = 67/10 --------------- check 2(67/10) - 4(12/5) = 3.8 67/5 - 48/5 = 3.8 19/5 = 3.8 3.8 = 3.8 checks for that one, you check the other. Hint change to fractions, or decimals for better handling. My TI-84 can do this easily, but I do not know your calculator or capabilities
What way is better for solving problems in a relationship together or alone?
Together
Describe a system of equations that would be better graphed using graphing technology?
no.
