jaxondbagley
12.02.2022 •
Mathematics
Solve the system
of equation by
using subsitution,
Y=2x +3
x - y = -2
Solved
Show answers
More tips
- F Food and Cooking Deflope: What is it and how does it work?...
- B Business and Finance How to Create a Business Plan? Your Ultimate Guide...
- F Food and Cooking Unusually Delicious Shashlik - Follow the Etiquette of Proper Preparation!...
- C Computers and Internet Make Easy Accessible Screenshots on iPad in Just a Few Minutes...
- T Travel and tourism Lost in the Catacombs: What to Do?...
- F Family and Home Protect Your Home or Apartment from Pesky Ants...
- H Health and Medicine How to Treat Styes: Causes, Symptoms, and Home Remedies...
- L Legal consultation What Documents Are Required for a Russian Passport?...
- F Family and Home How to Properly Use a Water Level?...
- H Horoscopes, Magic, Divination How to Cast a Love Spell on a Guy? Guide for Guys...
Answers on questions: Mathematics
- M Mathematics A translation along the vector - 4, 5 maps point P to point Q. The coordinates of point Q are (6, - 3) . What are the coordinates of point ?...
- M Mathematics How do you use equivalent rates in the real world?...
- M Mathematics What is the shaded number of a border tile in 15 by 15...
- M Mathematics In september kick read 12 books in october he read 18 books in novermber nick read 16 books how many more books did read in september and october together than in just november?...
- M Mathematics Public relations is part of business and administrative support true or false...
- M Mathematics Find ii 2e-3f ii^2 assuming that e & f are unit vectors such that ii e +f ii=sqrt(3/2)....
- M Mathematics Write an equation in point slope form and in slope-intercept form for each line. 1. passes through (-5,6), slope = 3...
- M Mathematics How to write 3 turnovers : 12assists as a fraction in simplest form...
- M Mathematics Someone plz me with this whole paper i need it by tomorrow...
- M Mathematics Each business is accounted for separately from its owner or owners?...
Ответ:
The solution to this system of equations is (-1, 1).
Step-by-step explanation:
A system of equations is a "a finite set of equations for which common solutions are sought". Or, they are a pair (or more) of equations that either intersect, are parallel, or the same line. For the sake of simplicity, we are going to focus on systems of equations that intersect and only have one solution.
A solution to a system of equations that intersect is represented by a point (x, y). This makes sense because at the intersection of two points, there lies a point.
So how do we find this point? We do this by solving the system of equations. We show that there exists a point in which two lines can be satisfied simultaneously. But how can we do that? Trial and error?! Well, no. There are some ways of approaching this.
The first method is graphing. By either using an external source or doing it yourself, graphing two lines and showing where they intersect is one of the more understandable ways of solving a system of equations. The point where they cross is the solution of the system.
The second method is elimination. This is observing that a system of equations can be combined together to eliminate a variable (x or y) and solving for the other in a one-variable equation. For example, say that I have this system of equations:
x - y = 1
x + y = 1
By simply adding the two together, I get:
2x = 2
x = 1.
Since we already have x = 1, we can substitute it back into one of the original equations to get y.
1 + y = 1
y = 0.
So, the solution to this system of equations would be (1, 0). Speaking of substituting ...
The third method is substitution. This is observing that a variable (x or y) can be written in terms of the other and then using that to substitute in and make one of the equations one-variable.
y = 2x + 3
x - y = -2
We can see that y is already in terms of x in the first equation, so let's substitute y for 2x + 3 in the second equation.
x - (2x + 3) = -2
- x - 3 = -2
- x = 1
x = -1
We can substitute x back into one of the original equations.
y = 2(-1) + 3
y = -2 + 3
y = 1
Therefore, the solution to this system of equations is (-1, 1).
Ответ:
The rate of change is 69 ft/sec.
Step-by-step explanation:
The answer can be solved by using this simple method.