ballerboy2171 ballerboy2171
  • 11-09-2020
  • Mathematics
contestada

B is between A and C. If AB = 7x - 2, BC = 3x + 1 and AC = 59, Find AB

Respuesta :

unicorn3125
unicorn3125 unicorn3125
  • 12-09-2020

Answer:

           AB = 40

Step-by-step explanation:

B is between A and C so:

AB + BC = AC

7x - 2 + 3x + 1 = 59

10x - 1 = 59

      +1     +1

 10x  = 60

÷10      ÷10

  x = 6

AB = 7x - 2 = 7×6 - 2 = 42 - 2 = 40

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