" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
y-gruszki
x=0,8y
2y+x=5,60
przez podstawienie
2y+0,8y=5,60
2,8y=5,60 dzielimy obustronnie przez 2,8
y=2[zł]
x=0,8*2=1,60[zł]
spr. L=2*2+1,60=4+1,60=5,60
P=5,60
L=P
y = cena gruszek
x = 0,8y
2y+x=5,60
2y+0,8y=5,6
2,8y = 5,60 /2,8
y = 2
cena gruszek = 2
cena jabłek = 2*0,80 = 1,60