hi everybody i have a question. the cancer death rate 100,000 people in the United States can be aproximated by the equation y=-2.2x+216, where x is the number of year since 1990. use this equation to determine in whixh year the approximate cancer death rate will be 150?

Question

hi everybody i have a question. the cancer death rate 100,000 people  in the United States can be aproximated by the equation y=-2.2x+216, where x is the number of year since 1990.  use this equation to determine in whixh year the approximate cancer death rate will be 150?

anonymous · Answer

no ones knows ?

anonymous · Answer

y = -2.2x + 216
2.2x = 216 - y
x = (216-y) /2.2
x = (216-150)/2.2
x = 30

so in 2020