Answer:
2x - 11
Explanation:
We multiply x by 2 which gives us 2x, then subtract it by 11 which gives us 2x - 11.
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The <u>correct answer</u> is:
0.08.
Explanation:
To calculate the BAC, 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
This has 42 g of alcohol.
Next we convert the weight in pounds to 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