
Võrduse koostamine 8.klass
Authored by Helgi Kaiv
Mathematics
8th Grade
Used 8+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Üks arv on x ja teine y. Nende summa on 38.
x+y =38
x-y =38
xy=38
x/y=38
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Üks arv on x ja teine y. Üks arv on 30% teisest.
x = y + 0,3
y = 0,3x
x = 0,3y
x = y + 0,3y
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Üks arv on x ja teine y. Üks arv on teisest 6% võrra suurem.
x = y - 0,06y
x = y + 0,06y
x = y + 0,06
y = x + 0,06y
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Üks arv on x ja teine y. Üks arv on 3 võrra suurem kui 20% teisest.
x = 0,2y + 3
y = 0,2x + 3
x = 1,2x + 3
5.
MULTIPLE SELECT QUESTION
2 mins • 1 pt
Üks arv on x ja teine y. Esimese arvu viiekordne on nelja võrra väiksem teise arvu kolmekordsest.
3x = 5y - 4
5x = 3y - 4
5x - 3y = 4
6.
MULTIPLE SELECT QUESTION
2 mins • 1 pt
Ristküliku pikkus on xcm ja laius ycm. Kui pikkust suurendada 20% võrra ja laiust vähendada 3% võrra, siis on ristküliku ümbermõõt 48cm.
0,2x + 0,2x + 0,03y + 0,03y = 48
1,2x + 1,2x + 0,97y + 0,97y = 48
1,2x + 0,97y = 48
2(1,2x + 0,97y)=48
2(0,2x + 0,03y)=48
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
1kg õunu maksab x eurot ja 1kg pirne y eurot. 28kg õunu ja 13kg pirne maksab 36 eurot.
x +y = 36
28x + 13y = 36
13x + 28y = 36
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