Answer:
3120
Step-by-step explanation:
step 1:multiply 8 with 0 and 7 with 0
step 2:add a 0 in the end and multiply 8 with 4 . you get 32. take 2 and carry over 3. multiply 7 with 4. you get 28 . add 3 you get 31. now add. you get 3120
Which of these systems of linear equations has no solution?
1 answer:
Answer:
D)4 x -3 y = 16. 8 x -6 y = 34.
Step-by-step explanation:
A system of linear equations is a set of (linear) equations that have more than one unknown. The unknowns appear in several of the equations and these equations relate the unknowns or variables to each other.
When you solve a system of two equations with two unknowns, what you are really doing is finding the cut-off point of the two lines, if any. But if the graphs of the equations do not intersect, then there is no solution to the equations. In this case the lines are parallel and the system is incompatible. The lines are parallel when they have the same slope, but different ordinate. The way to represent a line is
y= mx+n Equation (A)
where m is the slope and n is the ordinate.
In this case, subsection D) is a system without solution. To observe this, you first express as equation (A) the lines:
4x - 3y=16 ⇒ -3y=16 -4x ⇒ y= -16/3+4/3 x
8 x -6 y = 34 ⇒ -6y=34-8x ⇒ y=-17/3 +4/3 x
You can see that the lines are parallel because they have the same slope. Then it will be a system without solution. You can also see it in the attached graph, where the green line belongs to the line 4x -3y=16 and the red line to the line 8x -6y=34
You might be interested in
In the year 2009 there were 3500 birds on an island. If the bird population is declining 2.2% per year it means that in the year 2014 we will have 3500*
= 3131.57 birds.
The best prediction is that in the year 2014 the bird population will be 3132.
The best prediction is that in the year 2014 the bird population will be 3132.