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AriannasMommy2010

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  • one year ago
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  1. AriannasMommy2010
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    The number of years a person in the united states is expected to live can be approximated by the equation y=0.189x+70.8,where x is the number of years since 1970.solve this equation for x. use this new equation to determine in which year the approximate life expectancy will be 80.2 years.

    • one year ago
  2. AriannasMommy2010
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    I have y=0.189x+70.8 Subtract 70.80 from both sides y- 70.8=0.189x Divide both sides by 0.189x y-70.8/0.189=x

    • one year ago
  3. AriannasMommy2010
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    Need to figure out where x is the number of years since 1970.solve this equation for x. use this new equation to determine in which year the approximate life expectancy will be 80.2 years.

    • one year ago
  4. AriannasMommy2010
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    ?

    • one year ago
  5. jim_thompson5910
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    You have this x = ( y - 70.8)/0.189 plug in y = 80.2 and evaluate/simplify to find x

    • one year ago
  6. Yacoub1993
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    x=49.735

    • one year ago
  7. Yacoub1993
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    x= 49 years

    • one year ago
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