Question

a certain mountain had an elevation of 19,978 feet. in 1912, the glacier on this peak covered 6 acres. by 2003 this glacier had melted to only 1 acre.

assume that this glacier melted a contant rate each year. find the yearly rate. HELP!!!!!!!!!!

Answer 1

Ok so the years are 2003 and 1912. The year difference is 91.

So to get the yearly rate you find the amount it has reduced by which is 5 acres, and divide by the years.

5/91 = 5.49%

Answer 2

now how do i use that as a linear that gives the acreage A of this glacier t years past 1912

Answer 3

oh you just do 6- (5/91 * x) = acreage

Answer 4

you start out with 6 and you're subtracting the yearly rate times the years passed to get the acreage left.

Answer 5

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