Question

Determine o valor de "x" nas proporções?a) x/4 = 9/12b) 15/3 = 10/xc) 6/9 = x/15d) 7/x = 14/12e) 2x/5 = 24/15f) 3/4 = 5x/20

Answer 1

a) x/4 = 9/12 12x = 36 x = 3 b) 15/3 = 10/x 15x = 30 x = 2 c) 6/9 = x/15 9x = 90 x = 10 d) 7/x = 14/12 14x = 84 x = 6 e) 2x/5 = 24/15 30x = 120 x = 4 f) 3/4 = 5x/20 20x = 60 x = 3