College Algebra (11th Edition)

Published by Pearson
ISBN 10: 0321671791
ISBN 13: 978-0-32167-179-0

Chapter R - Section R.2 - Real Numbers and Their Properties - R.2 Exercises - Page 19: 118



Work Step by Step

We will use the following formula for the blood alcohol concentration (BAC) of a person who has been drinking. BAC = (number of oz)(% alcohol)(0.075) / (body weight in lb) - (hr of drinking)(0.015). We are to determine the BAC for a 135 lb woman who has ingested three 12-oz-beers (36 oz) each having 4% alcohol, in 2 hours. Estimate to the nearest thousandth. Number of oz = 36 % alcohol = 4 body weight = 135 hr of drinking = 3 We will use the formula: $BAC=(36)(4)(0.075)\div(135)-(3)(0.015)$ $=10.8\div135-3(0.015)$ $=0.008-0.045$ Therefore, the BAC of the person is: $BAC=0.008-0.045=0.035$
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.