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Consider a right angled triangle, it has perimeter of 72cm. Let's label the three sides a, b and c.Therefore, a + b + c = 72cm.Also, we know that a:b:c = 3:4:5Therefore we can say that a = 3x, b = 4x, c =...

x=4, y=-2

3x + 1 = 4(2x) 3x + 1 = 8x 1 = 5x x = 1/5

(1(1/5)) / (3/4)1(1/5) = 6/5therefore the question is(6/5) / (3/4)To divide a fraction, you simply swap the position of the numerator and denominator in the latter part of the example, and multiple the fr...

Multiply the first equation by 2 to obtain 2x+2y = 32,Then use the elimination technique and add the first equation into the second equation to get : 7x = 49 therefore divide by 7 to find x = 7 Sub this v...