Oblicz:
a) 25,4% liczby 25
b) 45,5% liczby 150
Proszę o wszystkie obliczenia
100%--------25 100x=635 /100
25,4%-------x x=6,35
100%--------150 100x=6 825 /100
45,5%-------x x=68,25
a) 25 - 100%x - 25,4%x=(25razy25,5)/100%x=6,35b)150 - 100%x - 45,5%x= (45,5razy150)/100%x=68,25 (na krzyż)
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100%--------25 100x=635 /100
25,4%-------x x=6,35
100%--------150 100x=6 825 /100
45,5%-------x x=68,25
a) 25 - 100%
x - 25,4%
x=(25razy25,5)/100%
x=6,35
b)150 - 100%
x - 45,5%
x= (45,5razy150)/100%
x=68,25
(na krzyż)