What is 8x-4y=20 in slope intercept form
Answers
Answer:
y = 2x - 5
Step-by-step explanation:
8x - 4y = 20
The slope intercept form is
-4y = -8x + 20
y = 2x - 5
Final answer:
To write the equation 8x - 4y = 20 in slope-intercept form, isolate y by moving the terms around and solve for y. The slope-intercept form of the equation is y = 2x - 5.
Explanation:
To write the equation 8x - 4y = 20 in slope-intercept form, we need to solve for y. The slope-intercept form of an equation is y = mx + b, where m is the slope and b is the y-intercept.
First, let's isolate y by moving the 8x term to the other side of the equation:
8x - 4y = 20
-4y = -8x + 20
To isolate y, we divide both sides of the equation by -4:
y = 2x - 5
So, the equation 8x - 4y = 20 in slope-intercept form is y = 2x - 5.
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Can someone please help me think of a number sentence using the pens and pencils to the right?
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Here's what it's trying to show:
-- The line 'a'--'b' is the line where a wall meets the floor.
-- The line to 'c' is a vertical line drawn on the wall.
-- The line to 'd' is a line drawn on the floor.
If you can see it like that, then there are two giveaways for the value of 'x':
One way:
'c' is perpendicular to the floor. That's the only way the angles
on the wall on each side of it ... 3x and 3x ... could be equal, and
they must be 90 degree angles, so 'x' is 30 degrees.
The other way:
The line on the floor, to 'd', is not perpendicular to the wall, because the angles
on the floor on each side of it are not equal. But the two of them do add up to
180 degrees, because the line 'a'--'b' is a straight line.
So 'x' is what's left over when 150 degrees is taken away from 180 degrees.
'x' is 30 degrees again.
Answers
If you have at least one solution, it is consistent.
If you have no solutions, it is inconsistent.
When you solve the system of equations, you will get x = -2/3 and y = 3.5. This shows us that the system of equations is independent.
If the system of equations was dependent, you would have gotten a final result like 0 = 0.
Your final answer is C) Consistent and independent.
2)
Coincident lines are lines that look exactly the same when graphed.
You can see this if you divide the second equation by 2.
8y + 2x = 4
Divide both sides by 2.
4y + x = 2
This is exactly like the first equation.
Your final answer is A) Coincident.
3)
We have coincident lines, again.
Coincident lines will have infinitely many solutions because any solution to one equation will also work in the second equation.
Your final answer is D) Infinitely many.
4)
We are dealing with coincident lines, again.
Both equations have to be simplified down to x + 3y = 5.
Obviously, we can see that the second equation is the first equation multiplied by 4. We can tell that because the first equation has x, and the second equation has 4x.
To find the remaining terms, multiply by 4.
x + 3y = 5
Multiply both sides by 4.
4x + 4(3y) = 4(5)
4x + 12y = 20
The missing values are, respectively, 12y and 20.
5)
Graph each line and use the information I have told you above to classify each system.
1) A) Consistent and independent.
2) B) Coincident.
3) C) Inconsistent.
4) C) Inconsistent.
Answer: C) Consistent and independent.
2) A coincident system would mean that the points lie on the same line, which is what is here, so that would be the answer.
Answer: A) Coincident.
3) These equations have infinitely many because they lie on the same line, and can have ANY solution. So...you could put any points and have a correct equation.
Answer: D) Infinitely many.
4) when x = 1, y = 3.
So, multiply both by 4.
3y * 4 = 12y
5*4 = 20
12y and 20 would be the answers
5)
Consistent independent.
Coincident.
Inconsistent.
Inconsistent.
This is because the inconsistent would have a parallel line, and coincident would be when they lie on the same line, and consistent independent would be if they have one solution.
Answers
Answers
then we have to divide
it means Donovan babysit children of this family for 7 hours
Answer:
Donovan babysat for 7 hours.
Step-by-step explanation
Numerator = Money Earned Denominator= Hours Worked
=
31.50 x 2= 63 63/9 = 7
Answers
four more than the price p is just p +4
Answers
The value of 3 in 6300 is ten times the value of 3 in 530
Further Explanation
Place value and total value
- Place value refers to the value represented by a digit in a number based of its position in the number. Place values can be ones, tens, hundreds, thousands, etc
For example;
In the number; 13,548, the place value of the digits in the number are;
Ones -8
Tens - 4
Hundreds - 5
Thousands - 3
Ten Thousands – 1
Total value
- Total value is given as the product of the digit and its place value.
- For example; in the number, 13,548.
- Total value of digits 1, 3, 5, 4, and 8 in the number 13,548 will be;
1 x 10,000 = 10,000
3 x 1000 = 3,000
5 x 100 = 500
4 x 10 = 40
8 x 1 = 8
The sum of the total values of digits in a number will be equivalent to the value of that number.
In the question.
Comparing the value of 3 in 6,300 and 530
The value of 3 in 6,300 is 300 and
The value of 3 in 530 is 30
Therefore; the value of 3 in 6300 is ten times the value of 3 in 530
Keywords: Place value, total value
Learn more about;
- Types of number form: brainly.com/question/10754198
- Example of place value: brainly.com/question/10754198
- Example of total value: brainly.com/question/10754198
Level: Middle school
Subject: Mathematics
Topic: Place value and total value
Comparing the values of 3 in each of 6,300 and 530, we will have:
3 in 6300 is 3 hundreds while 3 in 530 is 3 tens
How to solve number place value?
Place value is defined as the value of each digit in a number. For example, the 5 in 853 represents 5 tens, or 50; however, the 5 in 5,003 represents 5 thousands, or 5,000.
We want to compare the values of 3 in each of the numbers 6,300 and 530.
Thus, we can say that:
3 in 6300 is called 3 hundreds while 3 in 30 is called 3 tens or 30
Read more about Number place value at: brainly.com/question/24997908
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