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Year 11 (2025) Maths Standard (2025) Formulae and Equations

Blood Alcohol Content

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Questions
Question 1
10862

Use the formula \(\text{BAC}_{\text{male}}=\dfrac{10N-7.5H}{6.8M}\) to find \(H\), the number of hours of drinking, when \(\text{BAC}=0.02\), \(M=80\) and \(N=4\).

Give your answer in hours and minutes, to the nearest minute.

3 hours 53 minutes

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