SOLUTION: I'm not even certain how to begin to start this, I thought the formula for solving it might be A=10t-19944 but I can't figure out if it's right or not. -- A certain mountain

Question 737497: I'm not even certain how to begin to start this, I thought the formula for solving it might be A=10t-19944 but I can't figure out if it's right or not.
--
A certain mountain has an elevation of 19,944 feet. In 1918, the glacier on this peak covered 10 acres. By 2003 this glacier had melted to only 1 acre.
A: Assume that this glacier melted at a constant rate each year. Find this yearly rate.
B: Use your answer from part (a) to write a linear equation that gives the acreage A of this glacier t years past 1918
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
(a)
The rate of melting is ( change in acres ) / ( years passed )
Rate =
Rate =
-------------
(b)
, where
= acres covered
= time in years
= slope from part (a)
= -intercept, where
( I am saying that 1918 is )
In 1918,
--------------

check:
when

acre
OK

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