Question 918027
<a href="http://www.algebra.com/my/mixture-price-two-part-both-parts-unknown.lesson?content_action=show_dev">http://www.algebra.com/my/mixture-price-two-part-both-parts-unknown.lesson?content_action=show_dev</a>
Mixture: Two-Part, price or cost, both material amounts unknown ;
http://www.algebra.com/my/mixture-price-two-part-both-parts-unknown.lesson?content_action=show_dev


You have to visit the lesson address and study the lesson.