Answer:
His estimated BAC is 0.08
Step-by-step explanation:
To calculate the BAC (Blood Alcohol Content) we first find the amount of alcohol (in grams) of the drinks.
In the US, a standard drink has 14 g of alcohol. The man has 2 beers and 1 shot; this is 3 standard drinks:
3 × 14 = 42 g of alcohol.
Next we convert the weight in pounds to grams. 1 pound = 453.592 grams
We do this by multiplying by 454:
140 × 454 = 63560
Next we multiply by the gender constant. For men, this is 0.68:
63560(0.68) = 43220.8
We divide the grams of alcohol by this number:
42 ÷ 43220.8 = 0.000972
Multiply this by 100:
0.000972(100) = 0.0972
This is the BAC right after drinking. To account for the time that has passed, we multiply the number of hours by 0.015:
1 × 0.015 = 0.015
We subtract this from our immediate BAC:
0.0972 - 0.015 = 0.0822 ≈ 0.08
His estimated BAC is 0.08
