<PRE><B>Question 1109627</B>
x pounds coffee worth $10 per pound
20 pounds coffee worth $4 per pound
WANT mixture to be $5 per pound


Write an equation to account for the COST for the mixture.
{{{10x+4*20=5(x+20)}}}
-


STEPS TO SOLVE

{{{10x+80=5x+100}}}
{{{5x=20}}}
{{{highlight(x=4)}}}


Use 4 pounds of the coffee of $10 per pound.


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&lt;a href=&quot;https://www.algebra.com/my/Two-Part-Mixture-with-one-material-quantity-unknown.lesson?content_action=show_dev&quot;&gt;LESSON:  One unknown quantity and one known quantity, two-part mixture for price or cost&lt;/a&gt;
https://www.algebra.com/my/Two-Part-Mixture-with-one-material-quantity-unknown.lesson?content_action=show_dev</PRE>