Question 985347
Account for COST, using if possible, one variable only.


p, amount of the 100 peso/kg nuts


{{{highlight_green(100*p+150*(20-p)=20*120)}}}.
Find p and use it to find or evaluate 20-p.


A Lesson:
<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  Good method but sometimes two unknown variables not necessary as a method</a>


A Video:
<a href="https://www.youtube.com/watch?v=-REjxT9KCzQ">Same concept and form.  Two Part Mixture Problem in which concentration can be as PESOS PER KILOGRAM</a>