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Dmitrij [34]
3 years ago
6

Please solve this and please explain! Thankyou!

Mathematics
2 answers:
Vinil7 [7]3 years ago
7 0

Answer:

50

Step-by-step explanation:

At the bottom we see n = 6, that's already solved for us so now we plug it into the equation.

3n+ 2 and n - 1, When a variable is next to a number, you multiply the number of the variable and the original number together, So in this case n = 6 and we have 3n + 2, 3n = 18 (3x6) and then 18 + 2 = 20. And since n = 6, N - 1 = 5 (6-1) So we add the first sum of 3n+2 = 20 + N - 1 = 5 which gives us 25. Now that we have our sum of width and length we multiply that by 2 in order find the perimeter. 25x2 = 50.

tester [92]3 years ago
5 0

Answer:

50

Step-by-step explanation:

When n = 6, the length is 3 * 6 + 2 = 20 and the width is 6 - 1 = 5. We know that the perimeter of the rectangle is twice the sum of its length and width. The sum of the length and width is 20 + 5 = 25 and twice that is 25 * 2 = 50.

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