Question

Help! Please

Answer 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.

Answer 2

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

Answer 3

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.

Answer 4

?

Answer 5

You have this

x = ( y - 70.8)/0.189

plug in y = 80.2 and evaluate/simplify to find x

Answer 6

x=49.735

Answer 7

x= 49 years