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Georginutza
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(x,y,z) invers proportionale (0.3;0.5;0.6) 3x+y+3z=255 Ajutati-ma va rog urgent imi trebuie!!!!!

Răspuns :

Renatemambouko
x=k/0,3 = 10k/3
y=k/0,5 = 10k/5=2k
z=k/0,6 =10k/6=5k/3
3x+y+3z=255
3*10k/3+2k+3*5k/3=255
30k+6k+15k=765
51k=765
k=15
x= 10k/3 =50
y=2k =30
z=5k/3 =25

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