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Please help me please show your own work not online please only number 5.

Please help me please show your own work not online please only number 5.-example-1
User Rotem Tamir
by
2.8k points

1 Answer

23 votes
23 votes

Answer:

x = 10

Explanation:

You want to find the value of x when B is the midpoint of AC, and AB = 3x-8 and BC = x+12.

Setup

A midpoint divides a segment into two congruent segments:

AB = BC

3x -8 = x +12

Solution

Adding 8-x to both sides, we get

2x = 20

x = 10 . . . . . . . divide by the coefficient of x

The value of x is 10.

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Additional comment

The lengths of AB and BC are 10+12 = 22, which makes the length of AC = 44.

User Deepak G M
by
2.9k points