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Let the number of mango trees and the lichi trees in the orchard be 5x and 8x respectively. According to the question, Number of apple trees in the orchard = 5x + 0.4 × 5x = 7x Therefore, 5x + 8x + 7x = 85 Or, 20x = 85 Or, x = 4.25 Number of lichi trees in the orchard = 4.25x = 34
I. x2 – 13x + 36 = 0
II. 3y2 – 29y + 18 = 0
I. 96x² + 52x - 63 = 0
II. 77y² + 155y + 72 = 0
I. 5x² + 17x + 6 = 0
II. 2y² + 11y + 12 = 0
...I. 5x + y = 37
II. 4y+ x = 15
I. 5x² - 28x + 39 = 0
II. 2y² - 13y + 20 = 0
I. 2y2 - 15y + 18 = 0
II. 2x2 + 9x - 18 = 0
I. 35 y² + 58 y + 24 = 0
II. 21 x² + 37 x + 12 = 0
I). p2 = 81
II). q2 - 9q + 14 = 0
Solve the quadratic equations and determine the relation between x and y:
Equation 1: 33x² - 186x + 240 = 0
Equation 2: 35y² - 200y + ...
I. 104x² + 9x - 35 = 0
II. 72y² - 85y + 25 = 0