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olga nikolaevna [1]
4 years ago
14

Please help MATHEMATICS

Mathematics
1 answer:
laila [671]4 years ago
4 0

Answer:

3x+3

Step-by-step explanation:

add up x-3,x+6 and x

combine like terms

x+x+x-3+6=3x+3

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If AC=38 3/4,AB=6x, BC=8x+1/4 <br> what’s the value of x?
azamat

Applying the segment addition postulate:

x = 2.75

AB = 6x = 6(2.75) = 16.5 units

BC = 8x + 1/4 = 8(2.75) + 1/4 = 22.25 units.

<h3>What is the Segment Addition Postulate?</h3>

Based on the segment addition postulate, since B lies between points A and C on a line segment, then:

AB + BC = AC

AC = 38 3/4

AB = 6x

BC = 8x + 1/4

Substitute

6x + 8x + 1/4 = 38 3/4 [segment addition postulate]

14x + 1/4 = 155/4

14x = 155/4 - 1/4

14x = (155 - 1)/4

14x = 154/4

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56x = 154

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AB = 6x = 6(2.75) = 16.5 units

BC = 8x + 1/4 = 8(2.75) + 1/4 = 22.25 units.

Learn more about the segment addition postulate on:

brainly.com/question/2134445

#SPJ1

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