A, B, and C are collinear points, where B is between A and C. Find x if AB = x, BC = x + 6, and AC = 24. Then find the measures of AB and BC by substituting x back into the equation.

Respuesta :

Answer:

AB = 9, BC = 15

Step-by-step explanation:

Since, A, B, and C are collinear points, where B is between A and C. i. e. A - B - C

[tex]\therefore AC = AB + BC\\

\therefore 24 = x + x + 6\\

\therefore 24 = 2x + 6\\

\therefore 24 - 6 = 2x \\

\therefore 18 = 2x \\

\therefore \: \frac{18}{2} = x \\ \therefore \: x = 9[/tex]

[tex]\therefore AC = AB + BC\\

\therefore 24 = x + x + 6\\

\therefore 24 = 2x + 6\\

\therefore 24 - 6 = 2x \\

\therefore 18 = 2x \\

\therefore \: \frac{18}{2} = x \\ \therefore \: x = 9 \\ \because \: AB = x \\ \huge \red{ \therefore AB = 9} \\ \\ \because \:BC = x + 6 \\ \therefore \: BC = 9 + 6 \\ \huge \purple{ \therefore \: BC = 15}[/tex]

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