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Year 11 (2026) Maths Standard (2026) Formulas and Equations

Blood Alcohol Content

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Question 1
204554

The BAC formula for a male is \(\text{BAC}_{\text{male}}=\dfrac{10N-7.5H}{6.8M}\), where \(N\) is the number of standard drinks, \(H\) is the number of hours of drinking and \(M\) is the mass in kilograms.

Tom weighs 80 kg and has had 5 standard drinks in 2 hours. Find his BAC, correct to three decimal places.

\(\text{BAC}=\) 
0.064
 (3 d.p) 1 mark

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