algebra

In 1995, the life expectancy of males in a certain country was 73.7 years. In 2002 it was 77.5 years. Let E represent life expectancy in year t and t represents the number of years since 1995
E(t)=? t + ?
E (11) =? life expectancy of males in 2006

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asked by joann
  1. I don't know because I'm trying to figure it out now. Can someone please help me???????

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    posted by Diana
  2. the difference between 1995 and 2001 is 6 years, so you add 6 to 73.7 and you get
    0.6t+73.7, that's the first set of answers. Next, you replace the t with the 11 to represent the difference between the next set of years (1995 to 2006) so the next set of answers is
    E(11)= 79.2 because you simplify the years 0.5(11)+73.7 and that's how you get your answer :)

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    posted by Sandra
  3. sorry about the mix up of 2001 and 2002, but the process is still the same

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    posted by Sandra

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