Question

Aflati a, b, c si d, a caror suma este 32 si 15a=6b=5c=10d
Urgent si corect. Dau coroana​

Answer 1

Răspuns:

2a+2b+2c+2d=64

6b=15a/:3

2b=5a

5c=15a/:5

c=3a

2c=6a

10d=15a/:5

2d=3a

2a+5a+6a+3a=64

16a=64

a=64:16

a=4

2b=4*5

2b=20

b=10

c=4*3

c=12

2d=4*3

2d=12

d=6

R:a=4

  b=10

  c=12

  d=6