Le equazioni lineari
Presentation
•
Mathematics
•
12th Grade
•
Easy
Antonella Senese
Used 10+ times
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13 Slides • 2 Questions
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by Antonella Senese
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Poll
Qual è l’equazione che modellizza matematicamente il problema?
4+3X=19
3+4X=19
19=X+4
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Si analizza il problema:
Quali sono i dati?
19= punti totali
3=punti per ogni partita vinta. X=num.partite vinte
0=punti per ogni partita persa. 3=num partite perse.
1=punto per ogni partita pareggiata. 4= numpartite pareggiate
Come si costruisce l’equazione risolvente?
6
(punti vinte)* (num.vinte)+(punti perse)*(num.perse)+(punti pareggiate)*(num. pareGGIATE)=19
3X+0*3+1*4=19
4+3X=19--> 3x=19-4--> 3x=15 --> x=5
X=5> PARTITE vinte
CONCLUSIONE—> PARTITE GIOCATE 4+3+5=12
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Poll
Quale dei due valori rappresenta la soluzione della seguente equazione
X-3=0?
X=3
X=-3
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by Antonella Senese
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