Question

Ajutaţimă vă rogbfrumos!!!!!Ex 2 A,B,C,D

Answer 1

a+b+c=x kg
a=2/5(x)
b=8/25(x).....=> x=25/25

a) 2/5+8/25=(2*5+8)/25=18/25....=> a+b=18/25(x)=0,72
    25/25-18/25=7/25......................=> c=7/25(x)=0,28
    8/25+7/25=15/25.......................=> b+c=15/25(x)=3/5=0,6
    25/25-15/25=10/25....................=> a=10/25(x)=2/5(x)=0,4

10/25>8/25>7/25...=> in prima zi a vandut cea mai mare cantitate de struguri

b) 10/25+8/25=18/25(x) kg. a vandut in primele 2 zile

c) 25/25=x kg
    x=50 kg.
    c=7/25(50)
    c=50:25*7
    c=2*7
    c=14 kg. de struguri a vandut in cea de a 3-ia zi

d) 50/50(50)=3/3(50)
    => 3/3(50):3=50/3=1/3=16,66667
    
   raspuns:1/3(50)=1/3( 50)=1/3(50)

a=10/25(50)=2/5(50)=50:5*2=10*2=20kg.a vandut in prima zi
b=8/25(50)=50:25*8=2*8=16kg. a vandut a 2-a zi
c=50-(20+16)
c=50-36
c=14 kg.a vandut a 3-ia zi