69.7k views
3 votes
Two more and im done i promise

Two more and im done i promise-example-1
User Bellian
by
7.3k points

1 Answer

7 votes

-------------------------------------------------------------------------------------------------------------

Answer:
\textsf{8x + 11; 12x - 1; x = 3; TU = 35; UV = 35; TV = 70}

-------------------------------------------------------------------------------------------------------------

Given:
\textsf{TU = 8x + 11, UV = 12x - 1}

Find:
\textsf{Determine the value of x, TU, UV, TV}

Solution: In order to determine the value of TU and UV, we need to first create an equation using the given information. We know that TU is equal to 8x + 11 and UV is equal to 12x - 1. Since we know that U is the midpoint, we know that TU is equal to UV. Therefore, the equation would have the following format: TU = UV

Now that we have the format, we can plug in the expressions and then simplify the equation.


  • \textsf{TU = UV}

  • \textsf{8x + 11 = 12x - 1}

Now, we can solve for x by adding 1 to both sides and then subtracting 8x from both sides.


  • \textsf{8x + 11 + 1 = 12x - 1 + 1}

  • \textsf{8x - 8x + 12 = 12x - 8x}

  • \textsf{12 = 12x - 8x}

  • \textsf{12 = 4x}

We are now on the final step of solving for x. We just need to divide both sides by 4 to isolate the x variable and get the value of x.


  • \textsf{12 / 4 = 4x / 4}

  • \textsf{3 = x}

Now that we have the value of x, we can plug it into the TU and UV expressions to determine what the length of the segments are.


  • \textsf{TU = 8(3) + 11}

  • \textsf{TU = 24 + 11}

  • \textsf{TU = 35}


  • \textsf{UV = 12(3) - 1}

  • \textsf{UV = 36 - 1}

  • \textsf{UV = 35}

Now that we now both sides of the segment, we can add them together to determine the length of the total segment.


  • \textsf{TU + UV = TV}

  • \textsf{35 + 35 = TV}

  • \textsf{70 = TV}

Therefore, we know that the value of the variable x is equal to 3, the length of TU is 35, the length of UV is 35, the length of TV is 70.

User Ergonaut
by
8.5k points

No related questions found