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Mathematics 8 Online
OpenStudy (anonymous):

a certain mountain has an elevation of 19,477 feet. in 1911, the glacier on this peak covered 9 acres. by 2004 this glacier had melted to only 1 acre. if the glacier melts at a constant rate each year, what is the yearly rate?

OpenStudy (mathstudent55):

year 2004 - year 1911 = 93 years 9 acres - 1 acre = 8 acres 8 acres melted in 93 years = (8 acres)/(93 years) Do the division, and the answer is given in units of acres per year

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