Question

primul test ..va rog

Answer 1

2.a) x-3,2=1/2
x=1/2+3,2
x=0,5+3,2
x=3,7

b) 2(x+5/4)=13,2
x5/4=13,2+2
x5/4=13,4
x=5/4*13,4
x=1,26*13,4
x=16.75

3.Map=7,2*4+3,5*5
------------------=
4+5
28,8+17,5. 46.3
=-----------------=----------=
9. 9
=5

4.a+b+c=3.(6)
a+b=1.9
c=?
c=3.(6)-1.9
c=18+1.9
c=19.9=>19.9
--------=9.5
2
5. a= 360*3/5
a=360*0,6
a=216
b=34*2/5
b=34*0,4
b=136
c=216+136
c=352 (a treia zi)

6. x:1/3=x*8.5
x=1/3:8.5
x=0.(3)*8.5
x=0