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The length of a rectangle is 7 cm more than 4 times the width. If the perimeter of the rectangle is 44 cm, what are its dimensions?

User Urbushey
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2 Answers

1 vote

Final answer:

The width of the rectangle is 3 cm and the length is 19 cm.

Step-by-step explanation:

Let's define the width of the rectangle as 'w'. According to the problem, the length is 7 cm more than 4 times the width, so the length can be written as '4w + 7'.

The perimeter of a rectangle is calculated by adding twice the length to twice the width. In this case, the perimeter is given as 44 cm, so we can set up the equation: 2(4w + 7) + 2w = 44.

Simplifying the equation, we get 8w + 14 + 2w = 44. Combining like terms, we have 10w + 14 = 44. Subtracting 14 from both sides gives us 10w = 30. Finally, dividing both sides by 10, we find that w = 3.

Therefore, the width of the rectangle is 3 cm, and the length can be found by plugging in this value into '4w + 7'. The length is 4(3) + 7 = 12 + 7 = 19 cm.

User Karthik V
by
9.3k points
4 votes

Answer:

3 by 19

Step-by-step explanation:

User Toxicable
by
8.9k points

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