If B is on AC, then AB plus BC will give us AC. We are told the measures of AB, BC, AC in terms of X. So

we can say:

3X + 4X + 8 = 5X + 10 then simplify and get

2X = 2 so X = 1.

Now plug in that 1 to AC = 5X + 10 and get AC = 15!

Olivia C.

asked • 11d
More

If B is on AC, then AB plus BC will give us AC. We are told the measures of AB, BC, AC in terms of X. So

we can say:

3X + 4X + 8 = 5X + 10 then simplify and get

2X = 2 so X = 1.

Now plug in that 1 to AC = 5X + 10 and get AC = 15!

Mark M. answered • 10d

Tutor

5.0
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Mathematics Teacher - NCLB Highly Qualified

By segment addition:

3x + 4x + 8 = 5x + 10

7x + 8 = 5x + 10

-2x = 2

x = -1

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Edythe C.

5d