Question

va roooog dau coroana e urgenttttttttt!!!!!!!!!!!!!!!!!!!!!!!!!!!!! trebuie sa plec in 20 de Min la scoala

Answer 1

0,2/(37/10)=x/30*(2 2/3+3,5)
20/37=x/30*(8/3+7/2)
20/37=x/(80+105)
20/37=x/185
x=20*185/37=100

x/1,2=(2,5-1 2/3)²/5/24
5x/6=24(5/2-5/3)²/5
5x/6=24(5/6)²/5
5x/6=24*25/36*5
5x/6=4*5/6
x=4


5 8/15*{[0,2+x(1 1/3-1,2)]*1,(6)}/2,1(3)= 2³²/4¹⁵
128/15*{[1/5+x(4/3-6/5)]*1,(6)}/2,1(3)= 2³²/2³⁰
1,(6)=(16-1)/9=15/9=5/3
2,1(3)=(213-21)/90=192/90=32/15
128/15*{[1/5+x(20-18)/15)]*5/3}/ (32/15)= 2²
128/15*{[1/5+2x/15]*5/3}*15/32=4
4*{[1/5+2x/15]*5/3}=4
[1/5+2x/15]*5/3=1
1/5+2x/15=3/5
2x/15=2/5
x/15=1/5
x=3

Answer 2

1/5+2x/15=3/5
2x/15=2/5
x/15=1/5
x=3  .

Asta am avut-o si eu ca tema acasa, deci sper ca este corecta!