Michael is putting a circular window in a wall in his house. He measures out the radius of the window to be 3 feet, and decides
1 answer:
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Cost of installation fee is $120.
Step-by-step explanation:
Let,
Monthly fee = x
Installation fee = y
According to given statement;
6x+y=594 Eqn 1
11x+y=989 Eqn 2
Subtracting Eqn 1 from Eqn 2
Putting x=79 in Eqn 1
Cost of installation fee is $120.
Keywords: Linear equations, subtraction
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