SOLUTION: There are 850 Douglas fir and ponderosa pine trees in a section of forest bought by Sawz Logging Co. The company paid an average of $300 for each Douglas fir and $225 for each pon

Algebra ->  Customizable Word Problem Solvers  -> Finance -> SOLUTION: There are 850 Douglas fir and ponderosa pine trees in a section of forest bought by Sawz Logging Co. The company paid an average of $300 for each Douglas fir and $225 for each pon      Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


   



Question 43212This question is from textbook
: There are 850 Douglas fir and ponderosa pine trees in a section of forest bought by Sawz Logging Co. The company paid an average of $300 for each Douglas fir and $225 for each ponderosa pine. If the company paid $217,500 for the trees, how many of each kind did the company buy? This question is from textbook

Answer by Nate(3500) About Me  (Show Source):
You can put this solution on YOUR website!
Amount of Douglas firs = d
Amount of Pine trees = p
Equations:
d+%2B+p+=+850
300d+%2B+225p+=+217500
Combine:
-300d+-+300p+=+-255000
+
300d+%2B+225p+=+217500
=
-75p+=+-37500
p+=+500
PLUG:
d+%2B+p+=+850
d+%2B+500+=+850
d+=+350