Question

the perimeter of triangle pqr is 30cm write a linear equation in two variable based on the information given above​

Answer 1

Answer:

$2(x + y) = 30$

$let \: x \: be \: 12$

$2(12) + 2(y) = 30$

$24 + 2y = 30$

$2y = 30 - 24$

$2y = 6$

$y = \frac{6}{2}$

$y = 3$

$x = 12$

$y = 3$

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