Question

va rog ajutatima URGENT va rog mult de tot dau coroana ​

Answer 1

Răspuns:

2. a) 2/6

b) 4/6

3. p-pompe

4p ... 15h

6p ... xh

x=15×6/4

x=90/4

x=22,5h

5. A1×2=A2×3=A3×6=360°=> A1=360÷2=180

A2=360÷3=120

A3=360÷6=60

6. a/0,(3)=b/0,5=c/0,(6)=k

0,(3)=3/9=1/3

0,5=5/10=1/2

0,(6)=6/9=2/3

a/(1/3)=0,(3)=3/9=1/3

a/(1/3)=b/(1/2)=c/(2/3)=k

3a=2b=3c/2 = k => a=k/3

b=k/2

c=2k/3

2k/3-k/3=4

k/3=4

k=12

a=4

b=6

c=8