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Acar travelled 100 km with half the distance at 40 km/h and the other half at 80 km/h. find the average speed of the car for the whole journey.
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An investment decreases in value by 30% in the first year and decreases by 40% in the second year. what is the percent decrease in percentage in the investment after two years
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It is given that the quadratic equation hx²-3x+k=0, where h and k are constants, has roots [tex] \beta \: and \: 2 \beta [/tex]express h in terms of k
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Acar travelled 100 km with half the distance at 40 km/h and the other half at 80 km/h. find the aver...
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