" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
y-waga Bogdana
x+y=70
x+4=y-3
x=70-y
x-y=-3-4
x=70-y
70-y-y=-7
x=70-y
70-2y=-7
x=70-y
-2y=-77/÷(-2)
x=70-y
y=38,5
x=70-y=70-38,5=31,5.
x=31,5 y=38,5
odp: Ania waży 31,5kg a Bogdan 38,5kg.
y- waga Bogdana
x+y=70
x+4=y-3
x=70-y
x-y=-3-4
x=70-y
70-y-y=-7
x=70-y
70-2y=-7
x=70-y
-2y=-77 |/-2
x=70-y
y=38,5
x=70-y=70-38,5=31,5.
x=31,5 y=38,5
y-waga Bogdana
to będzie układ równań
x+y=70
x+4=y-3
x+y=70
x-y=-7
2x=63
x=31,5
x=31,5
x+y=70
x=31,5
y=70-31,5
x=31,5
y=38,5
sprawdzenie:
31,5+38,5=70
31,5+4=38,5-3
odp: Ania waży 31,5 a Bogdan 38,5.