Respostas
respondido por:
4
a-) 4/5 = 32/40
b-) 3/7 = 12/28
b-) 3/7 = 12/28
respondido por:
2
a)
4 = 32
------ -------
5 x
4x = 5.32
4x = 160
x = 160/4
x = 40
Resp.: 32
------
40
****************************************************
b)
3 = y
----- ------
7 28
3.28 = 7y
84 = 7y
7y = 84
y = 84/7
y = 12
Resp.: 12
-------
28
4 = 32
------ -------
5 x
4x = 5.32
4x = 160
x = 160/4
x = 40
Resp.: 32
------
40
****************************************************
b)
3 = y
----- ------
7 28
3.28 = 7y
84 = 7y
7y = 84
y = 84/7
y = 12
Resp.: 12
-------
28
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