QuestionEstimate alcohol and marijuana use by US high school seniors in 2010 using $A=-0.9n+88$ and $M=0.1n+43$.

Studdy Solution
Calculate the maximum percentage of seniors who used marijuana.
$$M =0. \times24 +43 =46.\%$$The percentage of seniors who used marijuana in2010 was estimated to be45%, and the actual percentage calculated using the formula was also45%. The percentage of seniors who used alcohol in2010 was calculated to be70%. The maximum percentage of seniors who used marijuana was in201, with a percentage of46.%.