Question

Afla nr necunoscut din: 4xa=304 ;320:a=8 ; a:6=224 ; 565:a=7 rest 5 ;l bx9=140 ; 840:c=7 ; b:5=208 rest8 152:b=9 rest 5

Answer 1

●4a=304
a=304÷4
a=76
●320÷a=8
a=320÷8
a=40
●a÷6=224
a=6*224
a=1344
●565÷a=7 rest 5
a=(565-5)÷7
a=560÷7
a=80
●b*9=140
b=140÷9
b=15,(5)
●840÷c=7
c=840÷7
c=120
●b÷5=208 rest 8
b=5*208+8
b=1040+8
b=1048
●152÷b=9 rest 5
b=(152-5)÷9
b=147÷9
b=16, (3)