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A contractor bought 6.4ft^2 of sheet metal. has used 2.1ft^2 so far and has ​$129 worth of sheet metal remaining. The equation 6.4x - 2.1x = 129 represents how much sheet metal is remaining and the cost of the remaining amount. How much does sheet metal cost per square​ foot?

1 Answer

2 votes

Answer:

30$ per ft^2

Explanation:

6.4x-2.1x=129

4.3x=129

x=30

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