Homework Help: Algebra

Posted by Cassandra on Wednesday, December 12, 2012 at 8:41pm.

Ground beef sells for $4.75 per kg and ground pork sells for $5.50 per kg. How many kg of ground pork should be mixed with 8 kg of ground beef to make a mixture that sells for $5.10 per kg?

I dont know how to set this up or anything. Please help!

Algebra - MathMate, Wednesday, December 12, 2012 at 11:03pm
Let x=weight of ground pork in kg
then 8-x=weight of ground beef.
total weight = 8 kg
therefore
5.50x + 4.75(8-x) = 5.10 * 8

Solve for x.

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