Question

Afla cifrele a,b,c in fiecare caz:
a) 3/20=0,ab b) 7/4=1,ab
c) 1,4=a/5 d) 11/4=a,bc e) 3,8=ab/5
f) 0,05=1//ab​

Answer 1

Răspuns:

a) 3/20 = 0,ab

3 : 20 = 0,15

ab = 15

b) 7/4 = 1,ab

7:4 = 1,75

ab = 75

c) 1,4= a/5

a = 7

Verificare : 7: 5 = 1,4

d) 11/4 = a

a = 11 : 4

a = 2,75

e) 3,8 = ab/5

ab= 19

Verificare : 19:5 = 3,8

f) 0,05 = 1 / ab

ab = 20

Verificare : 1 : 20 = 0,05