proporzioni
Flashcard
•
Mathematics
•
7th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
Cos'è una proporzione?
Back
Una proporzione è un'uguaglianza tra due rapporti. Ad esempio, se a:b = c:d, allora a e b sono in proporzione con c e d.
2.
FLASHCARD QUESTION
Front
Quali sono i termini di una proporzione?
Back
I termini di una proporzione sono divisi in due coppie: gli estremi (primo e ultimo termine) e i medi (secondo e terzo termine).
3.
FLASHCARD QUESTION
Front
Come si calcola il valore di x in una proporzione?
Back
Per calcolare x in una proporzione, si può usare la regola del prodotto incrociato: a:b = c:d implica che a*d = b*c.
4.
FLASHCARD QUESTION
Front
Esempio di proporzione: 3:4 = x:12. Qual è il valore di x?
Back
x = 9.
5.
FLASHCARD QUESTION
Front
Cosa sono gli estremi in una proporzione?
Back
Gli estremi sono il primo e l'ultimo termine di una proporzione.
6.
FLASHCARD QUESTION
Front
Cosa sono i medi in una proporzione?
Back
I medi sono il secondo e il terzo termine di una proporzione.
7.
FLASHCARD QUESTION
Front
Se 2:5 = x:10, come si trova x?
Back
x = 4.
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