Conservationists 62994

Conservationists planted a total of 695 trees of three species. There were 65 spruces more than pine trees and the first three times less than pines. How many trees of each species were planted?

Final Answer:

s =  335
b =  270
j =  90

Step-by-step explanation:

s+b+j=695 s=65+b j=b/3  b+j+s=695 bs=65 b3j=0  Row2Row1Row2 j2s=760  Row3Row1Row3 4js=695  Pivot:Row2Row3  Row341 Row2Row3 1.75s=586.25  s=1.75586.25=335 j=4695+s=4695+335=90 b=695js=69590335=270  b=270 j=90 s=335



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