kaleyn42 kaleyn42

17-09-2020
Mathematics

contestada

If B is between A and C, and AB=3x+1 and BC=2x-7, and AC=19, find the length of AB.

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mykiahgriffiths mykiahgriffiths

17-09-2020

Answer:

16

Step-by-step explanation:

AB+BC=AC

3x+1+2x-7=19

5x-6=19

5x=25

x=5

AB=3x+1

AB=3(5)+1

AB=15+1

AB=16

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