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Jednadžbe i problemi 1Ma

Authored by jasenka mutak

Mathematics

9th Grade

Used 7+ times

Jednadžbe i problemi 1Ma
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14 questions

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1.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Riješi jednadžbu

 12(x23)23(x+12)=2\frac{1}{2}\left(x-\frac{2}{3}\right)-\frac{2}{3}\left(x+\frac{1}{2}\right)=2  

-12

8

-16

10

2.

MULTIPLE SELECT QUESTION

3 mins • 1 pt

Rješenje jednadžbe (2x-3)  \cdot  (8x+1)=  (5+4x)2\left(5+4x\right)^2  

 731-\frac{7}{31}  

 1431-\frac{14}{31}  

 2131-\frac{21}{31}  

 2831-\frac{28}{31}  

3.

MULTIPLE SELECT QUESTION

3 mins • 1 pt

Riješi jednadžbu : 3x152x+22=54x310\frac{3x-1}{5}-\frac{2x+2}{2}=5-\frac{4x-3}{10}  


nema rješenja 

0

neodređena jednadžba

41

4.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Pod prostorije ima površinu 16 m2 , prekriven je sa dva tepiha površina 7.2 m2 i 6.5 m2. Ako se ta dva tepiha preklapaju na površini 1.5 m2 koliki dio prostorije nije prekriven tepihom? Rješenje izrazi u m2 i u %.

3.8 m2 ili 23.75%

5.3 m2 ili 33.125%

2.3 m2 ili 14,375%

0.8 m2 ili 5%

5.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Cijena 150 kg kave je 6 750 kn. Koliko kilograma kave možemo kupiti za 5 400 kn?

120 kg

36 kg

187.5 kg

178 kg

6.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Tri medicinska tehničara za 8 sati obrade 50 pacijenata. Koliko tehničara treba da se isti broj pacijenata obradi za 6 sati?

6

5

4

3

7.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Iz jednakosti

 c=abac=\frac{a-b}{a}  izrazi b

b=a - ac

 b=acab=\frac{a-c}{a}  

b= ac +a

 b=aacb=\frac{a}{a-c}  

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