probleme care se rezolvă cu ecuații sau sisteme de ecuații
Quiz
•
Mathematics
•
7th Grade
•
Medium
MARIA BEER
Used 181+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Suma a două numere este 14 și diferența lor este 6, atunci numerele sunt:
9 și 5
10 și 4
8 si 6
5 si 9
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Media aritmetică a două numere este 3 si un număr este cu 2 mai mare ca celălalt număr. Atunci numerele sunt:
3 si 5
4 si 8
4 si 2
5 si 7
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Suma a patru numere consecutive este 46, atunci numerele sunt:
9, 10, 11, 12
8, 9,10, 11
10, 11,12,13
11,12,13,14
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Perechea (3,1) este soluția ecuației:
3x+y=11
3x+y=10
3x-y=11
3x-y=5
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
3x-4y+5=0 si x=-3. Atunci y=
-2
+2
-1
+1
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Perimetrul unui triunghi isoscel este 21, dacă baza este cu 3 mai mică decât lungimea uneia din laturile egale, atunci laturile sunt:
9,9,3
6,6,9
10,10,7
8,8,5
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
25% dintr-un număr este 12. Atunci numărul este:
64
36
96
48
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