document.write( "Question 347682: in 1994, the life expectancy of males in a certain country was 62.6 years. In 2001, it was 65.2 years. Let E represent the life expectancy in year t and let t represent the number of years since 1994. Could someone help me solve this question by step by step? Thank you!!! \n" ); document.write( "

Algebra.Com's Answer #248530 by josmiceli(19441) $\"\"$ $\"About$

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There must be a little more information. Is this problem
\n" ); document.write( "part of exercises on linear equations? If so,
\n" ); document.write( "given:
\n" ); document.write( "Let t represent the number of years since 1994.
\n" ); document.write( " $\"t%5B1%5D+=+0\"$ (1994)
\n" ); document.write( " $\"t%5B2%5D+=+7\"$ (2001)
\n" ); document.write( " $\"E%5B1%5D+=+62.6\"$
\n" ); document.write( " $\"E%5B2%5D+=+65.2\"$
\n" ); document.write( "Assuming this is a linear relation between $\"E\"$ and $\"t\"$ ,
\n" ); document.write( "The formula to use is:
\n" ); document.write( "

\n" ); document.write( "plugging in data:
\n" ); document.write( " $\"%28E+-+62.6%29+%2F+%28t+-+0%29+=+%2865.2+-+62.6%29+%2F+%287+-+0%29\"$
\n" ); document.write( " $\"%28E+-+62.6%29+%2F+t+=+2.6+%2F+7\"$
\n" ); document.write( " $\"%28E+-+62.6%29+%2F+t+=+.3714\"$
\n" ); document.write( " $\"E+-+62.6+=+.3714t\"$
\n" ); document.write( " $\"E+=+.3714t+%2B+62.6\"$
\n" ); document.write( "With this equation, you can find $\"E\"$ for any $\"t\"$ \r
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "

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