Question

5.) Află a + b + c în fiecare caz:
a) a = 2 xb
b = c :3
c = 4 x 6
a + b + c = ?
b) a = b + b
b = 24: C
c= 42:7
a + b + c = ?
c) a = b + b
b = c:9
c= 90 - 36
a + b + c = ?​

Answer 1

Răspuns:

a). a=2×b

b=c:3

c=4×6=24

b=24:3=8

a=2×8=16

A=16

B=8

C=24

a+b+c=16+8+24=24+24=48

b) a=b+b

b=24: C

c=42:7=6

b=24:6=4

a=4+4=8

a+b+c=6+4+8=10+8=18

A=8

B=4

C=6

c). a=b+b

b=c:9

c=90-36=54

b=54:9=6

a=6+6=12

a+b+c=54+6+12=60+12=72

A=12

B=6

C=54