Point K is on line segment ‾JL. Given JK = 2x - 2, KL = x - 9, and JL = 2x + 8, determine the numerical length of ‾KL.

coexpennan

coexpennan

Answered question

2021-02-01

Point K is on line segment JL. Given JK=2x2,KL=x9, and JL=2x+8, determine the numerical length of KL.

Answer & Explanation

Alix Ortiz

Alix Ortiz

Skilled2021-02-02Added 109 answers

By Angle Addition Postulate,
JL=JK+KL
Substitute given expressions:
2x+8=(2x2)+(x9)
Solve for x:
2x+8=3x11
x+8=11
x=19
x=19
Hence,
KL=199
KL=10

Jeffrey Jordon

Jeffrey Jordon

Expert2021-08-10Added 2605 answers

Explanation

RizerMix

RizerMix

Expert2023-05-29Added 656 answers

Let's assume the length of KL is denoted by d.
We are given:
JK=2x2KL=x9JL=2x+8
Since point K lies on line segment JL, the sum of the lengths of JK and KL should be equal to the length of JL.
We can express this mathematically as:
JK+KL=JL2x2+x9=2x+83x11=2x+83x2x=8+11x=19
Now that we have found the value of x, we can substitute it back into the equation for KL to find its length:
KL=x9KL=199KL=10
Therefore, the numerical length of KL is 10.
Don Sumner

Don Sumner

Skilled2023-05-29Added 184 answers

To solve the problem, we'll start by applying the segment addition postulate. According to this postulate, the length of the entire segment JL can be obtained by adding the lengths of its two parts, JK and KL. Therefore, we can set up the following equation:
JK+KL=JL
Now, let's substitute the given lengths into the equation:
2x2+(x9)=2x+8
Simplifying the equation:
3x11=2x+8
Moving the variables to one side and the constants to the other side:
3x2x=8+11
x=19
Now that we have found the value of x, we can substitute it back into the expression for KL:
KL=x9=199=10
Hence, the numerical length of KL is 10.
Vasquez

Vasquez

Expert2023-05-29Added 669 answers

Answer:
10
Explanation:
Let's solve for the numerical length of KL, denoted as KL.
Given:
JK=2x2
KL=x9
JL=2x+8
We know that JL=JK+KL. Substituting the given values, we have:
2x+8=(2x2)+(x9)
Now we can solve this equation for x:
2x+8=2x2+x9
Combine like terms:
2x+8=3x11
Subtract 2x from both sides:
8=x11
Add 11 to both sides:
19=x
Now that we have the value of x, we can find the length of KL by substituting x back into the equation for KL:
KL=x9=199=10
Therefore, the numerical length of KL is 10.

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