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September 21, 2014

September 21, 2014

Posted by **Amy~** on Sunday, September 12, 2010 at 12:00am.

(the total weight of the desired blend is 100 lbs)

How would I solve this?

The equation would 3.90 = 2.75x + 5x ?

3.90(100) = 2.75x + 5x

- Math Word Problem -
**drwls**, Sunday, September 12, 2010 at 7:39amLet there be x lb of the expensive coffee and y lb of the inexpensive coffee.

x + y = 100

5x + 2.75 y = 3.90*100 = 390

Now solve for both x and y.

5x + 5y = 500

2.25 y = 110

y = 48.89

x = 51.11

It is almost a 50/50 blend

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