CIAO, Fai una domanda su 3x−4y=−30,3x+2y=6 oppure scegli tra le opzioni qui sotto
Risolvi per: Risolvi per eliminazione
Risolvi per: Risolvi usando la regola di Cramer
Risolvi per: Risolvere con l'eliminazione Gaussiana
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A train left the station heading to Boston. An hour later, another train left the station heading the same way to Boston, traveling 120 mph. The second train caught up to the first train after three hours. How fast was the first train traveling?
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