A chemist mixed $x$ liters of a 3% saline solution with $y$ liters of…

Question

Prompt

A chemist mixed

x

liters of a 3% saline solution with

y

liters of a 6% saline solution to produce a 5% saline solution. Which equation best represents this situation? (Assume the volumes of the solutions are additive.)

0.03 x + 0.06 y = 5 (x + y)

0.03 x + 0.06 y = 0.05 (x + y)

0.3 x + 0.6 y = 0.5 (x + y)

3 x + 6 y = 5