Question

Afla numerele necunoscute a)x + 243 = 802. y *6 = 78 b) a - 309 =391 b:4=207 c) 1000 =250+ m 303= n:3​

Answer 1

Salutare!

x+243=802

x=802-243

x=559

v:559+243=802

y×6=78

y=78:6

y=13

v:13×6=78

a-309=391

a=391+309

a=700

v:700-309=391

b:4=207

b=207×4

b=828

v:828:4=207

1 000=250+m

m=1 000-250

m=750

v:1 000=250+750

303=n:3

n=303×3

n=909

v:303=909:3

Answer 2

Răspuns:

a) x = 559; y = 13

b) a = 700; b = 828

c) m = 750; n = 909

Explicație pas cu pas:

a) x + 243 = 802

x = 802 - 243

x = 559

y × 6 = 78

y = 78 : 6

y = 13

b) a - 309 = 391

a = 309 + 391

a = 700

b : 4 = 207

b = 207 × 4

b = 828

c) 1000 = 250 + m

m = 1000 - 250

m = 750

303 = n : 3

n = 303 × 3

n = 909

-Mihai