Find a formula for N in terms of the unknown x.

Question

Dave has inherited an apple orchard on which 70 trees are planted. Under these conditions, each tree yields 10 bushels of apples. According to the local WSU extension agent, each time Dave removes a tree the yield per tree will go up 0.45 bushels. Let x be the number of trees in the orchard and N the yield per tree.

Answer 1

The number of apples = number of trees x yield/tree

The yield per tree is the original 10 plus (70-x)(.45)

N = x(10 + (70-x)(.45))

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