Question

Help............................Rapid
clasa a -v-a

Answer 1

Răspuns:

Explicație pas cu pas:

L=5dm+2x+2y

x=20dm:8dm=2,5dm

y=7x6dm=42dm               L=5dm+5dm+84dm=94dm

l=9y-3x+4dm

x=57,6:2,4=24 dm

y=60:5=12dm            l=9x12-3x24+4=108-72+4=40 dm

h=15/7x+15/7y=15/7(x+y)

x=122:10=12,2 dm

y=4x0,45=1,8 dm              h=15/7(12,2+1,8)=15/7x14=30 dm