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04-10-2016
Mathematics

contestada

Write a complete two-column proof for following information.
Given: AB = 3y - 1, BC = 7y, AC = 29
Prove: AB = 8

Respuesta :

nobillionaireNobley nobillionaireNobley

11-10-2016

AB + AC = AC
3y - 1 + 7y = 29
10y = 29 + 1 = 30
y = 30/10 = 3

Therefore, AB = 3(3) - 1 = 9 - 1 = 8.

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