👤
Ella1889
a fost răspuns

Află numărul necunoscut din:
41 x 100 – a = 32 : 4 x 50
bx 5 + 79 x 25 = 20 x 50 x 2
(49 : 7 + 3 x 25.- 81:9:3:3)+c= 100​

Răspuns :

Crintina72

Răspuns:

❀❀ೋ═══ • - • ═══ೋ❀❀

Salutare!

41×100-a=32:4×50

4 100-a=8×50

4 100-a=400

a=4 100-400

a=3 700

b×5+79×25=20×50×2

b×5+1 975=1 000×2

b×5+1 975=2 000

b×5=2000-1975

b×5=25

b=25:5

b=5

(49:7+3×25-81:9:3:3)+c=100

(7+75-9:3:3)+c=100

(7+75-3:3)+c=100

(7+75-1)+c=100

(82-1)+c=100

81+c=100

c=100-81

c=19

#Succes!

❀❀ೋ═══ • - • ═══ೋ❀❀

ImAndreea10

Explicație pas cu pas:

Bună !!

•Rezolvarea:

**mai jos↓

•41×100-a=32:4×50

•4100-a=8×50

•4100-a=400

•a=4100-400

•a=3700

*Verificare:

•41×100-3700=32:4×50

•4100-3700=8×50

•400=400 ✓✓

•b×5+79×25=20×50×2

•b×5+1975=1000×2

•b×5+1975=2000

•b×5=2000-1975

•b×5=25

•b=25:5

•b=5

*Verificare:

•5×5+79×25=20×50×2

•25+1975=1000×2

•2000=2000 ✓✓

•(49:7+3×25-81:9:3:3)+c=100

•(7+75-9:3:3)+c=100

•(82-3:3)+c=100

•(82-1)+c=100

•81+c=100

•c=100-81

•c=19

*Verificare:

•(49:7+3×25-81:9:3:3)+19=100

•(7+75-9:3:3)+19=100

•(82-3:3)+19=100

•(82-1)+19=100

•81+19=100

•100=100 ✓✓

Succes !!;)

✧✧AndreeaBrainly123✧✧

Alte intrebari