Q. The perimeter of a rectangular piece of metal is 150 centimeters. The piece is 26 centimeters wide. How long is it?_____ centimeters
Identify formula: Identify the formula for the perimeter of a rectangle.The formula for the perimeter of a rectangle is P=2l+2w, where P is the perimeter, l is the length, and w is the width.
Plug in values: Plug in the values of P and w into the formula.Given P=150 centimeters and w=26 centimeters, we can substitute these values into the formula to get 150=2l+2(26).
Simplify equation: Simplify the equation by performing the multiplication. 150=2l+52
Isolate term with l: Isolate the term with l by subtracting 52 from both sides of the equation.150−52=2l98=2l
Solve for l: Solve for l by dividing both sides of the equation by 2.298=l49=l
Check solution: Check the solution by plugging the value of l back into the original perimeter formula.P=2l+2w150=2(49)+2(26)150=98+52150=150The solution checks out.
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