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?

Question

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?

mathstudent55 · Answer

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