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The following rectangle has a length of 6 centimeters and an unknown width. If the perimeter is 21 centimeters, what is the width of the rectangle? Set up an equation, and solve.
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The following rectangle has a length of 6 centimeters and an unknown width. If the

perimeter is 21 centimeters, what is the width of the rectangle? Set up an equation, and solve.

User Vittorio
by
6.0k points

1 Answer

7 votes

Answer:

The width is 4.5 cm

Explanation:

w + w+ 6 + 6 = 21 Combine like terms

2w + 12 = 21 Subtract 12 from both sides

2w = 9 Divide both sides by 2

w = 4.5

User Jeremy Chen
by
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