There are 850 douglas fir and ponderosa pine trees in a section of forest bought by karamazov logging co. the company paid 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?

Douglas fir trees are 350 in number and Ponderosa pine trees are 500 in number.  

Step-by-step explanation:

Let the number of Douglas fir be denoted by 'x'

Let the number of Ponderosa pine trees be denoted by 'y'

The company paid average of $300 for each Douglas fir and $225 for each Ponderosa pine.

This gives, for total Douglas fir trees and for total Ponderosa pine trees.

Total amount paid by the company = 217500

Also given, there are 850 Douglas fir and Ponderosa pine trees which means ;

or

   ......................(1)

 .............(2)

Putting the value of 'x' from equation 1 into equation 2.

Now, solving this equation we get,

And we know

So, x =

Hence, Douglas fir trees are 350 in number and Ponderosa pine trees are 500 in number.  

a is the correct

the answer is simply just 6n add the two together as they have an n