Question

Natalia is a scuba diver. She went on a dive this morning and hercurrent position relative to sea level is -168.8 feet. If she dove at anaverage of -12.6 feet per minute, how many minutes did it takeNatalia to reach her current depth? Round your answer to the nearesthundredth.

Answer 1

Recall the relationship between speed, distance, and time.

$speed=\frac{distance}{time}$

Based on the question, Natalia is 168.8 ft below sea level (distance) while her diving average speed is 12.6 ft per minute.

Let's plug these data into the formula above to determine the time it took Natalia to be on her current depth.

$\frac{12.6ft}{min}=\frac{168.8ft}{x\text{ }min}$

Cross multiply the equation to solve for "x" mins.

$12.6x=168.8$

Divide 12.6 on both sides of the equation.

$\frac{12.6x}{12.6}=\frac{168.8}{12.6}\Rightarrow x=13.3968\approx13.40min$

Therefore, it took Natalia about 13.4 mins to reach her current depth.