Question

Sí A/9=B/7=C/2, además B-C=65 Calcule A.

Answer 1

Respuesta:

A = 117

B = 91

C = 26

Explicación paso a paso:

A / 9 = B / 7 = C / 2

A / 9 = B / 7

A =  9B / 7

B / 7 = C / 2

B = 7C / 2

B - C = 65

7C / 2 - C = 65

(7C - 2C) / 2 = 65

5C = 65 * 2

5C = 130

C = 130 / 5

C = 26

B = 7C / 2

B = 7(26) / 2

B = 7 * 13

B = 91

A = 9B / 7

A = 9(91) / 7

A = 117