A laboratory technician at a chemical supply company needs to mix a 10% hydrochloric acid solution and a 40% hydrochloric acid solution to produce 250 milliliters of a 25% solution. Let $x$ represent the volume of the 10% solution and $y$ represent the volume of the 40% solution. Which equation correctly represents the requirement that the total amount of pure hydrochloric acid in the mixture must equal the amount of pure acid in the final solution?

A laboratory technician at a pharmaceutical company is preparing a hydrochloric acid solution for a specific chemical reaction. They need to mix a 10% solution ($x$) and a 40% solution ($y$) to produce 250 milliliters of a 25% solution. They use the following system of equations to find the required volumes:

$x + y = 250$ ${}0.10x + 0.40y = 0.25(250)$

Match each mathematical component of the system to its physical meaning in this scenario.

A laboratory technician is tasked with mixing two different concentrations of hydrochloric acid to produce a specific final volume and concentration. Arrange the following steps in the correct logical order to set up and solve the system of equations for this mixture problem.

Interpreting Mixture Problem Equations

A quality control technician needs to mix a 10% and a 40% hydrochloric acid solution to create a specific final concentration. When setting up the system of equations to solve this, the technician should use two equations that both represent the percentage of pure acid in the solutions.