Suppose That the Salinity $S$ Of Ocean Water at a Given Depth

question 325

Multiple Choice

Suppose that the salinity $S$ of ocean water at a given depth $d$ is modeled by the equation $\mathrm { S } ( \mathrm { d } ) = 31.7 + 1.5 \log ( \mathrm { d } + 1 )$ , where $\mathrm { S }$ is measured in grams salt per kilogram water and $\mathrm { d }$ is measured in meters. What is the salinity when the depth is $931 \mathrm {~m}$ ? Round your answer to the nearest hundredth.

• A) \(- 27.25 \mathrm {~g} \mathrm { salt } / \mathrm { kg }\) water
• B) \(92.63 \mathrm {~g} \mathrm { salt } / \mathrm { kg }\) water
• C) \(95.63 \mathrm {~g} \mathrm { salt } / \mathrm { kg }\) water
• D) \(36.15 \mathrm {~g} \mathrm { salt } / \mathrm { kg }\) water

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