Respuesta :
percent means parts out of 100
30%=30/100=3/10
'of' means multiply
12 is 30% of what means
12=3/10 times what
tmes both sides by 10/3
120/3=what
40=what
the number is 40
30%=30/100=3/10
'of' means multiply
12 is 30% of what means
12=3/10 times what
tmes both sides by 10/3
120/3=what
40=what
the number is 40