Question 1016395
Very common type of mixture problem


<a href="http://www.algebra.com/my/Mixtures%3A-All-in-Symbols.lesson?content_action=show_dev">Two variables method taught here for two-part mixture</a>


<a href="https://www.youtube.com/watch?v=-REjxT9KCzQ">video example demonstrating how to use just a single variable</a>