Question 76999
300X+225(850-X)=217,500
300X+191,250-225X=217,500
75X=217,500-191,250
75X=26,250
X=26,250/75
X=350 NUMBER OF DOUGLAS FIR TREES
850-350=500 NUMBER OF PONDEROSA PINE TREES
PROOF
300*350+225*500=217,500
105,000+112,500=217,500
217,500=217,500