SOLUTION: An acre of land is to be planted with trees 4 ft. apart.  Determine number of trees needed.
Acre = 43560 sq. ft.
Not sure how to solve.  Non-homework.
Algebra.Com
Question 1126285:  An acre of land is to be planted with trees 4 ft. apart.  Determine number of trees needed.
Acre = 43560 sq. ft.
Not sure how to solve.  Non-homework. 
Answer by ikleyn(52878)   (Show Source): You can put this solution on YOUR website!
 .
HINT : each the three goes with a square of land 4*4 = 16 square feet.
I hope this hint is enough for you to complete the solution on your own.
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comment from student : A square of land 4 * 4 = 16 sq. ft. 43560 / 16 = 2722.5 trees Am I correct?
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My response :  I think you are correct and this estimation  ~ 2722 trees is right.
 
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