Question

4,va rog!Dau coroana.

Answer 1

1) 2,5m^2 + x= 1 dam^2
1dam^2 = 100 m^2
=> 2.5 m^2 +x m^2= 100 m^2
x= 100-2.5 = 97.5 m^2
 
2) 27 dam^2  +x= 1hm ^2 
1 hm^2= 100 dam^2 
=> 27dam^2 +x= 100 dam^2
x=100-27=73dam^2

3) 318m^2 + 227m^2 +x= 1hm^2
1hm^2= 10000m^2
=> 545m^2+x= 10000m^2
x=10000-545=9555 m^2

4) 48dm^2 +x= 1m^2
1 m^2=100 dm^2
=> 48 dm^2 +x = 100 dm^2
x=100-48=52 dm^2 

5)625 cm^2+x= 1 m^2
1m^2= 10000 cm^2
=> 625 cm^2 +x = 10000 cm^2
x=10000-625=9475 cm^2

6) 21 dm^2+ 450 cm^2+x = 1m^2
450 cm^2= 4,5 dm^2
1m^2= 100 dm^2
=> 21 dm^2+ 4,5dm^2 +x=100 dm^2
25,5 dm^2 +x= 100 dm^2
x= 100-25,5=74,5 dm^2