Question

30 de puncte! exercitiul 7 .

Answer 1

Răspuns:

x = 4

x = 6

x = 4

Explicație pas cu pas:

AM/AB = MN/BC

6/8 = 3/x

x = 3×8/6

x = 24/6

x = 4

AM/AB = MN/BC

15/20 = x/8

x = 15×8/20

x = 120/20

x = 6

AN/AC = MN/BC

x/(x+1) = 4/5

5x = 4x + 4

5x - 4x = 4

x = 4