Află numărul necunoscut
178 530: m=330
n×450=293 400
290×o=18 270
(920×p):20=3 128
r×(100 000-99 750)=87.250
va rog repede​

Răspuns:

[tex]\frac{178530}{m} = 330 => m = \frac{178530}{330} => m=541\\\\n*450=293400 => n = \frac{293400}{450}=>n=652\\\\290*o=18270 => o = \frac{18270}{290} => o=63\\\\\frac{920*p}{20}=3128 => 920*p = 3128*20 => p= \frac{62560}{920} => p=68\\\\r*(100000-99750)=87250 => r*250=87250 => r=\frac{87250}{250} => r=349\\[/tex]