document.write( "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. \r
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\n" ); document.write( "\n" ); document.write( "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. \r
\n" ); document.write( "\n" ); document.write( "A: Assume that this glacier melted at a constant rate each year. Find this yearly rate.
\n" ); document.write( "B: Use your answer from part (a) to write a linear equation that gives the acreage A of this glacier t years past 1918
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Algebra.Com's Answer #450396 by josmiceli(19441)\"\" \"About 
You can put this solution on YOUR website!
(a)
\n" ); document.write( "The rate of melting is ( change in acres ) / ( years passed )
\n" ); document.write( "Rate = \"++%28+1+-+10+%29+%2F+%28+2003+-+1918+%29++\"
\n" ); document.write( "Rate = \"+%28-9%29+%2F+5+=+-9%2F5+\"
\n" ); document.write( "-------------
\n" ); document.write( "(b)
\n" ); document.write( "\"+A+=+m%2At+%2B+b+\", where
\n" ); document.write( "\"+A+\" = acres covered
\n" ); document.write( "\"+t+\" = time in years
\n" ); document.write( "\"+m+\" = slope from part (a)
\n" ); document.write( "\"+b+\" = \"+A+\" -intercept, where \"+t+=+0+\"
\n" ); document.write( "( I am saying that 1918 is \"+t=0+\" )
\n" ); document.write( "In 1918, \"+A+=+10+\"
\n" ); document.write( "--------------
\n" ); document.write( "\"+A+=+%28-9%2F5%29%2At+%2B+10+\"
\n" ); document.write( "check:
\n" ); document.write( "when \"+t+=+5+\"
\n" ); document.write( "\"+A+=+-9+%2B+10+\"
\n" ); document.write( "\"+A+=+1+\" acre
\n" ); document.write( "OK\r
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