Question

Cine ma poate ajuta la exercitiile 13 si 14 ,va rog , multumesc !

Answer 1

13.
2a=k    a=k/2
3b=k   b=k/3
4c=k    c=k/4
a+b+c=104
k/2+k/3+k/4=104
6k+4k+3k=1248
13k=1248
k=96
a=96/2=48
b=96/3=32
c=96/4=24

14.
4:10=0,4=40%
a=4k
b=6k
c=10k
a/2+b/3+c/5=372
4k/2+6k/3+10k/5=372
2k+2k+2k=372
6k=372
k=62
a=4*62=248
b=6*62=372
c=10*62=620