posted by Jo on .
Solve the following equation in the complex number system. Please show all of your work.
solving quintics is hard, so look for easy roots with synthetic division
The manager of a coffee shop has one type of coffee that sells for $5 per pound and another type that sells for
$11 per pound. The manager wishes to mix 60 pounds of the $11 coffee to get a mixture that will sell for $9 per
pound. How many pounds of the $5 coffee should be used?