
Równania cz.II (kl.VII)
Authored by Anna Powazka-Słońska
Mathematics
7th Grade
Used 10+ times

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14 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Rozwiązaniem równania 2x+9=1 jest liczba
-5
-4
4
5
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Za gumkę i ołówek Zosia zapłaciła 3,20 zł. Ołówek był trzy razy droższy od gumki. Jeśli literą x oznaczymy cenę gumki, to:
3x = x + 3,20
4x = 3,20
3 + x = 3,20
2x + 3 = 3,20
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Wskaż równanie sprzeczne:
7x-5=-7x+5
7x-5=7x+5
7x=5
7(x+5)=0
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Liczba 8 spełnia równanie:
4x+2=2x+4
2x(x-6)=x(x-4)
4(x+2)=7
-x=-(x+3)
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Za 5 bułek i chleb Jacek zapłacił 7,20zł. Chleb jest 4 razy droższy od bułki. Ile kosztuje bułka?
0,80 zł
1,00 zł
1,20 zł
1,40 zł
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Średnia arytmetyczna liczby x i liczby o 6 większej wynosi 10. Liczba x jest równa
10
7
6
-2
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Hania, płacąc w sklepie za trzy tabliczki czekolady, podała kasjerce 15 zł i otrzymała 0,60 zł reszty. Które z równań odpowiada treści zadania, jeśli cenę tabliczki czekolady oznaczymy przez x?
3x+0,6=15
0,6x+3=15
3x+15=0,6
15x+0,6=3
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