document.write( "Question 25597: 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?\r
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Algebra.Com's Answer #13744 by elima(1433)\"\" \"About 
You can put this solution on YOUR website!
Let the Douglas Fir=x
\n" ); document.write( "Ponderosa pines=y
\n" ); document.write( "So the first equation ;
\n" ); document.write( "x+y=850
\n" ); document.write( "They paid 300 for Douglas Fir;
\n" ); document.write( "300x
\n" ); document.write( "They paid 225 for Ponderosa pine;
\n" ); document.write( "225y;
\n" ); document.write( "So equation 2;
\n" ); document.write( "300x+225y=217500
\n" ); document.write( "First solve the firsst equation for x;
\n" ); document.write( "x+y=850
\n" ); document.write( "x=850-y
\n" ); document.write( "Now subatitute that in the 2nd equation forx;
\n" ); document.write( "300(850-y)+225y=217500
\n" ); document.write( "255000-300y+225y=217500
\n" ); document.write( "-75y=217500-255000
\n" ); document.write( "-75y=-37500
\n" ); document.write( "y=500
\n" ); document.write( "Now plug that into the first equation to find x;
\n" ); document.write( "x+500=850
\n" ); document.write( "x=850-500
\n" ); document.write( "x=350
\n" ); document.write( "Hope you understand
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