Question

Aflaţi numarul pentru care 3/4 din el reprezinta:a)12 ,b)15, c)30,d)72,e)120.Va roog mult​

Answer 1

a )

3/4 * a = 12

3a=48

a=16

b)

3/4 * a = 15

3a= 15 * 4

3a= 60

a=60/3

a=20

c)

3/4 * a = 30

3a= 4 x 30

3a= 120

a=120/3

a=40

d)

3/4 * a = 72

3a=288

a=288/3

a= 96

e)

3/4 * a = 120

3a=120 * 4

3a=480

a=480 : 3

a=160