Question

Ma poate ajuta si pe mine cineva va rog frumos !?.​

Answer 1

Răspuns:

♧l.

1. a) 7/30

b) 15/36

2. a) D=l•C+R c1, c2=câturi

n=18•c1+13=7•c2+6

n-13=18•c1=7•c2-7

n-13=18•c1=7•(c2-1)

18•7=126

nr. cel mai mic n=126+13=139

b) 2a+3b+c=36

a+b+c=16

5a+5b+5c=80

2a+3b+c+5a+5b+5c=7a+8b+6c=36+80=116

3. a) 15,6+125,34=140,94

b) 100-34,82=65,18

c) 2,5•3,45=8,625