Question

Puteti sa ma ajutati , imi trebue pentru maine !!

Answer 1

a)75/100*64=48
b)x+2/18=1/6
( x+2)*6=18
x+2=3
x=1
c)x/5=9/y=21/35
21y=9*35
y=315:21
y=15
x15=9*5
x= 45:15
x=3
x+y= 15+3=18
d) nu stiu Sigur cum se face si mai Bine nu scriu prostii.
Sper sa iti foloseasca !

Answer 2

a)75%×64=75/100×64=3/4×64=3×16=48
a)-4)
b)x+2/18=1/6=>
x+2=18×1/6=18/6=3 =>
x=1
b)-3)
c)x/5=9/y=21/35=>
x/5=21/35=>x=21×5/35=
21/7=3
9/y=21/35=>y=35×9/21=
35×3/7=15
x+y=3+15=18
c)-2)
d)x=drumul
75%x=75×x/100=
3×x/4=3x/4
3x/4+24/1=x/1(se înmulțesc 24 si x)
3x/4+96/4=4x/4 |:4
3x+96=4x=>
x=96 km