Question

Use the Formula R = 6e12.77x, where x is the blood alcohol concentration and R, given in percent, is the risk of having a car accident.
Solve: What is blood alcohol concentration corresponds to a 25% risk of an accident?

Answer 1

here R = 25%
lets plug in the values and solve
\[ 25 = 6e^{12.77x}\]

Answer 2

\[ \frac{25}{6} = e^{12.77x} \]

Answer 3

now can you take natural log on both sides and solve for x ?

Answer 4

hmm can you ?

Answer 5

my calculator cant do all that, so can u just give me the answer please.

Answer 6

ok.. you should get
ln (25/6)/12.77 = .1117

Answer 7

Thank you

Answer 8

yw