" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
p+r=18
b) m=30%n
m+n=65
Chyba tak. :)
p = ½r + 3
p + r = 18
liczba m stanowi 30% liczby n a suma liczb m i n jest równa 65
m = 0,3 n lub m = 30 %n
m + n = 65