Question

ajutati-ma la ex 3 va rog

Answer 1

a)30 % ·x = 90 
30 ·x = 90 ·100 
x= 9000 :30 = 300
b)20%x=60,3
20x/100=60,3
x/5=60,3
x=60,3*5=301,5
c)12 *x=30*100
12*x=3000
x=250
d)2,5*x =25
2,5*x=25*100
2,5*x=2500
x=1000
e)150*x=330*100
150*x =3300
x=220
f)3000*x=60*100
3000*x+6000
x=2


*=inmultit
bafta