Mathematics, 28.02.2020 05:20, lola78830
A ballon archway has been ordered for decorating the high school gym for a 1950 style prom. The archway will contain 275 balloon , each holding 1.2 liters of helium . Each balloon has a mass of 2.7 milligrams when empty , and all the string and fixing that hold the balloon together total another 45 grams , If the helium has a density of 0.1785 grams per liter , what is the mass of the entire archway ?
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A ballon archway has been ordered for decorating the high school gym for a 1950 style prom. The arch...
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