Question 80622: The perimeter of a rectanglar pool is 140 yards. If the length is 10 yadrs more than the width, find the dimentions of the pool. Answer by tutor_paul(519) (Show Source):
You can put this solution on YOUR website! In this problem, you have 2 equations with 2 unknowns. That means you can solve for the unknowns:
Since you are given the perimeter, you can derive your first equation from that:
Equation #1:
You are also given the fact that the length is 10 yards more than the width. This forms the basis of your second equation:
Equation #2:
Now that you have established the 2 equations, you are ready to go. First, plug in your expression for L from Equation #2 into Equation #1 and solve for W:
Now, you can plug this value of W into Equation #2 and get L:
Good Luck,
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