Question

Decât 3, 4 ,6


Va Rog îmi trebuie într o ora jumate

Answer 1

3)
(20%)x180+(45%)x240=
(20/100)x180+(45/100)x240=
180/5 +(45x12)/5=
36+108=144

4)
(10%)x450+(13%)x2500-(75%)x24(cred ca e 24, urat scri bă tată bă!)=
(10/100)x450+(13/100)x2500-(75/100)x24=
450/10+13x25+(3/4)x24=
45+325+18=388

5)
(x/9)*360=200, ''*''=inmultit
360x=200*9
40x=200
x=5

(x/11)*495033=90006
x*(495033/11)=90006
45003x=90006
x=2

(5/x)*80=100 l :20
(5/x)*4=5
5/x=5/4
x=4

(34/x)*4800=13600 l :400
(34/x)*12=34
12/x=1
x=12

Acum am vazut ca ai cerut 6, nu 5.

(p%)x340=17
(p/100)x340=17 l x100
px340=1700
p=5%