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

set that equation you were given equal to 150 and solve for x

anonymous · Answer

so i would put 150=-2.2x+216 ???

anonymous · Answer

yes

anonymous · Answer

Ok. Thank you. Word problems are so hard for me.

anonymous · Answer

yeah, that is what i got as well, if we consider, x=1990 to be our starting point then, 30 years later would be 2020

anonymous · Answer

ok thanks again