Question

calcula el valor de cada proporcion ( Ayuda)

3/7 = x/140
140/x = 55/2
x/20 = 16/80
84/140 = x/96
160/10 = 48/x
 x/160 = 160/3200

Answer 1

solucion

3/7=x/140
140 * 3/7=x
420/7=x
x=60

140/x=55/2 ---(invertimos)
x/140=2/55
x=140 * 2/55
x=56/11

x/20=16/80
x=20 * 16/80
x=320/80
x=4

84/140=x/96
x=96 * 84/140
x=288/5

160/10=48/x
10/160=x/48
x=48 * 10/160
x=480/160
x=3

x/160=160/3200
x=160 * 160/3200
x=25600/3200
x=8

saludos