Question

exercitiul de pe fisa dau 30 de puncte

Answer 1

x, y i.p. 0,2 ; 0,5

2x+3y=48

__________

x=? y=?

___________

0,2x=0,5y=k

0,2x=k => x/5=k => x=5k

0,5y=k => y/2=k => y=2k

2*5k+3*2k=48

10k+6k=48

16k=48

k=3 => x=5*3=15

y=2*3=6

Kawaiimath