Find number abc
If 474ca + 2b8cc = 7422b find number abc. Multiple solutions may exist.Correct answers: 13
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Balloon ascentIn 1927, the first U.S. balloon flight ascent to exceed an altitude of 40,000-ft was made by Captain Hawthorne C. Gray of the U.S. Army Air Service, over Scott Field, Illinois. The nearly 2-hour free flight reached an altitude of 42,470-ft. The balloon had 80,000-cu.ft. capacity and used sand ballast. Because of trouble resulting in a descent that was too rapid, Gray parachuted out at 8,900-ft. Because Gray was not in command of the landing, the ascent did not make an official record. |