Question

(a+b+c):3=134,5
a=22,5+b
c=2*b
Determinati numerele

Answer 1

acum rescriu ce ai dat tu:(22,5+b+b+2b):3=134.5
=>(22.5+4b)=134.5*3
=>b=95.25
(22.5+95.25+95.25+190.5):3=134.5
a=117.75
b=95.25
c=190.5

Answer 2

(22.5+b+b+2b)/3=134.5
(22.5+4b)/3=134.5
22.5+4b=3*134;5
22.5+4b=403.5
4b=403.5/22.5
4b=67.5
b=67.5/4
b=16.875
a=22.5+b=22.5+16.875=39.375
c=2*b=2*16.875=33.75
raspuns:
a-39.375
b-16.875
c-33.75