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April 18, 2014

April 18, 2014

Posted by **rob** on Tuesday, May 24, 2011 at 3:35am.

How many lbs of pretzels and how many lbs of cereal were used to make the 8 lb mixture?

- algebra -
**Reiny**, Tuesday, May 24, 2011 at 8:23ampretzels --- p

cereal ----- c

p+c = 8

2p + 3c = 2.5(8)

re-write the first : c = 20 - p

sub into 2nd

2p + 3(20-p) = 20

easy to solve

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