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the perimeter is 90 in. and the width is 19 in.
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perimeter of a what? welcome to openstudy!
rectangle i have to find the unknown measurement
Solve the following for L: 2 L + 2*19 = 90
what to do after take the two in the middle & multiply ?
2L + 38 = 90 2L = 90-38
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next ? you take it from both sides dont you ?
Divide each side by 2. The LHS is then L and the RHS is 26.
thanks ! you helped me lots :)
You are welcome and thank you for the medal.
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