Answer: To calculate the estimated blood alcohol content (BAC), we need to consider factors such as the person's weight, the number of drinks consumed, the duration of drinking, and the type of alcohol consumed. Assuming the man has a standard drink of 0.6 oz of alcohol per drink, we can calculate his estimated BAC as follows:
The two 12 oz beers contain a total of 2 x 12 x 0.6 = 14.4 oz of alcohol.
The one-half oz shot of liquor contains 0.5 x 1 = 0.5 oz of alcohol.
The total amount of alcohol consumed is 14.4 + 0.5 = 14.9 oz.
The man's weight of 140 pounds is equivalent to 63.5 kg.
Assuming he has no other mitigating factors, such as food consumed or medical conditions, we can use the Widmark formula to estimate his BAC:
BAC = (Alcohol consumed / (Body weight x R)) - (0.015 x Hours since first drink)
where R is a gender-specific distribution ratio, assumed to be 0.68 for males.
Assuming the man had the drinks over the course of one hour, we can estimate his BAC as:
BAC = (14.9 / (63.5 x 0.68)) - (0.015 x 1) = 0.184
Therefore, his estimated BAC is 0.184, which is above the legal driving limit in most states in the US (0.08). It is important to note that this is only an estimate and there are many factors that can affect a person's actual BAC. It is always best to not drink and drive.