Question

63. Află factorul necunoscut:
a) a x 4 = 32
8 x a = 72
42: a = 7
b) m: 9 = 7
54: m = 6
6 x m = 24
c) 72:x= 9
x : 7 = 8
x : 6 = 900​

Answer 1

Salutare!

a×4=32

a=32:4

a=8

8×a=72

a=72:8

a=9

42:a=7

a=42:7

a=6

m:9=7

m=7×9

m=63

54:m=6

m=54:6

m=9

6×m=24

m=24:6

m=4

72:x=9

x=72:9

x=8

x:7=8

x=8×7

x=56

x:6=900

x=900×6

x=5400

Answer 2

Explicație pas cu pas:

ღSalutare!ღ

a) a×4=32

a=32:4

a=8

P: 8×4=32

8×a=72

a=72:8

a=9

P: 8×9=72

42:a=7

a=42:7

a=6

P: 42:6=7

b) m:9=7

m=7×9

m=63

P: 63:9=7

54:m=6

m=54:6

m=9

P: 54:9=6

6×m=24

m=24:6

m=4

P: 6×4=24

c) 72:x=9

x=72:9

x=8

P: 72:8=9

x:7=8

x=8×7

x=56

P: 56:7=8

x:6=900

x=900×6

x=5400

P: 5400:6=900

Succes !!;)