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AriannasMommy2010Best ResponseYou've already chosen the best response.1
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

AriannasMommy2010Best ResponseYou've already chosen the best response.1
I 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
 one year ago

AriannasMommy2010Best ResponseYou've already chosen the best response.1
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

jim_thompson5910Best ResponseYou've already chosen the best response.0
You have this x = ( y  70.8)/0.189 plug in y = 80.2 and evaluate/simplify to find x
 one year ago
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