Question

Determine o valor de "x" nas proporções? a) x/5= 21/35
b) 10/7= 50/x
c) 1/7= x-6/49
d) 5x+3/10 = -21/-30
e) 0,9/x =-21/-30
f) 5/x+4 = 30/54

Answer 1

e- 0,9/×=21/-30 ×= 0,9