Odpowiedzi

2010-03-03T18:54:01+01:00
A) 12% x = 6
x=6:12%
x=6:0,12
x=50

b)86 % y = 40,42
y=40,42:86%
y=40,42:0,86
y=47

c) 110 % a = 143
a=143:110%
a=143:1,1
a=130
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2010-03-03T18:55:48+01:00
A) 12% x = 6
12/100x=6 /*100/12
x=100/2
x=50

b)86 % y = 40,42
86/100y=40,42
0,86y=40,42 /:0,86
y=40,42/0,86
y=47

c) 110 % a = 143
110/100a=143 /*100/110
a= 14300/110
a=130
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