Question

Calcule o valor de b e c, onde b/4 = c/2 e b+c = 90.

Answer 1

(b/4) = (c/2) ⇒ 2b = 4c ⇒ b = 2c (I)

b+c = 90 ⇒ b = 90-c (II)

Igualando I e II: 2c = 90-c ⇒ 3c = 90 ⇒ c = 30
b = 2.30 ⇒ b = 60