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AriannasMommy2010
 one year ago
Best ResponseYou've already chosen the best response.1The 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.

AriannasMommy2010
 one year ago
Best ResponseYou've already chosen the best response.1I have y=0.189x+70.8 Subtract 70.80 from both sides y 70.8=0.189x Divide both sides by 0.189x y70.8/0.189=x

AriannasMommy2010
 one year ago
Best ResponseYou've already chosen the best response.1Need 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.

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.0You have this x = ( y  70.8)/0.189 plug in y = 80.2 and evaluate/simplify to find x
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