Question

A cliff diver begins her dive off of the cliff from a elevation of 10 4/5 meters. If her dive into the water results in a change in elevation of -13 1/5 meters, then at, what elevation does she finish her dive?

Answer 1

To find at what point she finished her dive we add the quantities given:

$10\frac{4}{5}-13\frac{1}{5}=\frac{54}{5}-\frac{66}{5}=-\frac{12}{5}=-2\frac{2}{5}$

Therefore she finished her dive at an elevation of -2 2/5.