How many coins of each type does box have
The vending machine coin box has nuckles, dimes, and quarters. Coin box has 3 times as many nickles and 4 times as many quarters as it does dimes. If box has the total of $96.25, how many coins of each type does it have?
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The goldsmith has 120 grams of the gold alloy (the mixure of gold and one more other metals) having 75% pure gold. How much pure gold should be added to the alloy which is 80% pure gold?
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Coin box has 3 times as many nickles and 4 times as many quarters as it does dimes. If box has the total of $96.25, how many coins of each type does it have?
A 50.0 mL graduated cylinder has a mass of 50.7 g. When a graduated cylinder is filled with an unknown liquid to the 39.4 mL mark, the liquid and cylinder combined have a mass of 156.6 g.
Calculate the area in square meters of 363 g Al foil that has a thickness of 16641 nm which is having the density of Al is 2.70g/cm3.
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The standard enthalpy change of the transition is 732 kJ/ mol. The myoglobin unfolds with the transition temperature of 45oC. Find out the entropy of unfolding of myoglobin at 298K.
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