Question

dauu coronitaaa pentruu 7,9,10 cu tot cu rezolvare ​

Answer 1

Răspuns:

Explicație pas cu pas:

Exercitiul 7

69/0,6= 69*10/0,6*10=690/6=115

0,117/3,6=0,117*10/3,6*10=1,77/36=0,04916666

5,4/7,2=0,75

15,3/0,45=34

1,69/0,013=1.69*1000/0,013*1000=1690/13=130

0,676/1,3=0,52

0,225/4,5=0,05

36/1,44=25

5,1/3,4=1,5

1,024/1,25=0,8192

Exercitiul 9

x=12.72/3.18=4

x=20/8=2,5

x=21/5=4.2

x=4.23/3=1.41

x=20.6/4.12=5

x=2.89/0.17=17

x=361/1.9=190

1.2x=9.6-3=6.6 x=6.6/1.2=5.5

x=(7.5+0.6)/1.5

8x=10.24 x=10.24/8=1.28

x=8/2.5=3.2

2.6x-1=5.76 2.6x=4.76 x=4.76/2.6=1.830

x=(7.6+0.8)/7 = 8.2/7=1.171

2.89-0.8x=2.25 0.8x= 2.89-2.25 x=0.64/0.8=0.8

x=(2.32+2)/2.4=1.8

Exercitiul 10

0.675/2.7=0.25