If the perimeter of a triangle is 9x + 7y and two of the sides are 2x + 3y and 4x − y, which is the third side? A. 3x + 5y B. x + 4y C. 3x + 4y D. x + 5y

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asked Oct 1, 2021 15.7k views

3 votes

If the perimeter of a triangle is 9x + 7y and two of the sides are 2x + 3y and 4x − y, which is the third side?

A. 3x + 5y
B. x + 4y
C. 3x + 4y
D. x + 5y

Mathematics
high-school

Williamvicary asked

by Williamvicary

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2 Answers

2 votes

Answer:

lsjfiejfsldkfjelijf

The answer is A

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Ntalbs answered Oct 3, 2021

by Ntalbs

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5 votes

Answer: A

(9x+7y) - (2x+3y) - (4x-y)

(9-2-4)x + (7-3 - -1)y

3x + (4 - - 1)y

3x + (4 + 1)y

3x + 5y

Explanation:

Shakti Malik answered Oct 5, 2021

by Shakti Malik

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