Question

daca x,y,z este direct proportional cu 2 3 7 determinati cele 3 numere stiind ca x-2y+z=13

Answer 1

Răspuns:

x/2=y/3=z/7=k

x=2k

y=3k

z=7k

2k-6k+7k=13

3k=13

k=4,(3)

x=2×4,(3)=2×13/3=26/3

y=3×4,(3)=13

z=7×4,(3)=28/3