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kap26 [50]
4 years ago
11

In the diagram below segment DEF is shown (since all three letters are shown, they are collinear). If

Mathematics
1 answer:
monitta4 years ago
3 0

Answer:

  • x = 4

Step-by-step explanation:

<u>Given</u>

  • DE = 3x + 2, EF = x + 5, DF = 23

<u>As per segment addition postulate</u>

  • DE + EF = DF

<u>Substituting values:</u>

  • 3x + 2 + x + 5 = 23
  • 4x + 7 = 23
  • 4x = 16
  • x = 4
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3 years ago
The fencing William chooses costs $29.53 per foot, including installation. What will the fencing cost? Show your work.
TiliK225 [7]

Answer:

C = 29.53x

Step-by-step explanation:

Given

Unit\ cost = \$29.53

Required

The cost of fencing (C)

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3 years ago
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miv72 [106K]
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5 0
4 years ago
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Find the value of x?<br><br> Enter your answer in the box.
8090 [49]

Answer:

x = 21

Step-by-step explanation:

We know that a triangle equals to 180 degrees.

Combine like terms. (x + 3x) and (-4 + 100)

x - 4 + 3x + 100 = 180

Subtract 96 on both sides.

4x + 96 = 180

      -96    -96

Divide 4 on both sides.

4x = 84

---    -----

4       4

And you get a solution of 21.

x = 21

<u>Check:</u>

Substitute 21 into x.

Add/Subtract from left to right.

21 - 4 + 3(21) + 100 = 180

17 + 63 + 100 = 180

80 + 100 = 180

180 = 180

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3 years ago
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