document.write( "Question 59155: 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? \n" ); document.write( "
Algebra.Com's Answer #40562 by checkley71(8403)![]() ![]() ![]() You can put this solution on YOUR website! D+P=850 D=850-P \n" ); document.write( "300D+225P=217500\r \n" ); document.write( "\n" ); document.write( "300(850-P)+225P=217500 \n" ); document.write( "255000-300P+225P=217500 \n" ); document.write( "-75P=-37500 \n" ); document.write( "P=37500/75 \n" ); document.write( "P=500 PINE TREES \n" ); document.write( "D+500=850 \n" ); document.write( "D=850-500 \n" ); document.write( "D=350 DOUGLASS FIR TREES \n" ); document.write( "PROOF \n" ); document.write( "300*350+225*500=217500 \n" ); document.write( "105000+112500=217500 \n" ); document.write( "217500=217500 \n" ); document.write( " \n" ); document.write( " |