1.
a)
7Kg ------- 5L
14Kg -------- X
14 x 5
--------- = 10
7
Rpt: 10 Litros de mermelada
b)
20 (7) ÷ 5 = 4 x 7
140 ÷ 5 = 28
28 = 28
Rpt: 28
c)
21 % = 21/100
30 % = 30/100
58 % = 58/100
65 % = 65/100
5% = 5/100
9%. = 9/100
