SOLUTION: The Ortegas have an apple orchard that contains 150 trees. The number of trees in each row is 20 more than twice the number of rows. Find the number of rows and the number of trees

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Question 647335: The Ortegas have an apple orchard that contains 150 trees. The number of trees in each row is 20 more than twice the number of rows. Find the number of rows and the number of trees per row.
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi,

The number of trees in each rowhighlight%28y%29 is 20 more than twice the number of rowshighlight%28x%29.

Question states***orchard that contains 150 trees.

  x%2Ay+=+150    | y =+2x%2B20

 x%282x%2B20%29+=+150

   2x^2 + 20x - 150 = 0

    x^2 + 10x - 75 = 0

   (x+15)(x-5) = 0

          x = 5, throwing out the negative solution for number of rows

 x(rows) = 5  and y(trees in @ row) = 30