Joana e Paula fizeram caminhadas juntas em uma pista circular. Joana deu oito voltas em 40 minutos e Paula, 10 voltas em 40 minutos. Qual foi a razão entre o número de voltas e o tempo gasto, para cada um
deles?​

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Hich equation can pair with x + 2y = 5 to create an inconsistent system? 2x + 4y = 3 5x + 2y = 3 6x + 12y = 30 3x + 4y = 8

How many liters of peroxide should be added to 12 liters of an 8% peroxide solution so that the resulting solution contains 16% peroxide?   original added new amount of peroxide 0.96 liters x 0.96 + x amount of solution 12 liters x 12 + x 0.18 liter 1.14 liters 1.92 liters 2.10 liters