## Intermediate Algebra (12th Edition)

$0.035$
We are given the formula: $BAC=number~of~oz\times\%~alcohol\times 0.075\div body~weight~in~lb-hr~of~drinking~\times 0.015$ We plug in the values given: $=36\times 4.0\times 0.075\div 135-3\times 0.015$ We solve using the order of operations: $=36\times 4.0\times 0.075\div 135-3\times 0.015$ First multiply: $=144\times 0.075\div 135-3\times 0.015$ Multiply again: $=10.8\div 135-3\times 0.015$ Divide: $=0.08-3\times 0.015$ Multiply: $=0.08-0.015$ And subtract: $=0.035$