Matematică
mathFTW
2016-04-12 02:15:12
Exercitiile : 8;9; si 10 99 de puncte Repedeee
Răspunsuri la întrebare
dorinbertaru
2016-04-12 02:40:29

8. 1*2/5+15/7*14/25= =7/5+6/5 =13/5 9.a 4.15+[22.5:1.5·0.4-(33.6:3·2-4.2²)]= =4.15+[6-(22.4-17.64)] =4.15+6-4.76 =5.39 9.b. 40m²+0.05hm²-300cm²= =4000dm²+50000dm²-3dm² =53997dm² 9.c. 8105m²=81.05ari=0.8105ha 10. 7+5+8+7+10+9+x = 8 x 7 46+x = 56 x = 56 - 46 x = 10

Adăugați un răspuns