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December 20, 2014

December 20, 2014

Posted by **eve** on Monday, November 26, 2012 at 6:41pm.

1.What are 3 possibliities of small plants and large plants you can plant in the garden?

- algebra -
**Reiny**, Monday, November 26, 2012 at 6:51pm2.5x + 8y = 200

5x + 16y = 400

We can graph this on the x-y plane and only look what the line does in the first quadrant.

x-intercept, let y = 0 , x = 80

y intercept , let x = 0 , y = 25

slope of line = -25/80 = -5/16

So starting with the point (80,0)

we can decrease the x by 16 and increase the y by 5 to get a new point

---> (64, 5)

---> (48, 10)

---> (32, 15)

---> (16, 20)

---> (0, 25)

pick any 3

testing one of them:

e.g. (32,15)

32 small + 15 large

takes 32(2.5) + 15(8) = 200

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