(12, 6)
(23, 17)
(17, 11)
(18, 12)
Correct answer is C
x - y = 6.......(i)
xy = 187.......(ii)
From equation (i), x(6 + y)
sub. for x in equation (ii) = y(6 + y)
= 187
y2 + 6y = 187
y2 + 6y - 187 = 0
(y + 17)(y - 11) = 0
y = -17 or y = 11
y cannot be negative, y = 11
Sub. for y in equation(i) = x - 11
= 16
x = 6 + 11
= 17
∴(x, y) = (17, 11)
Simplify \(4 - \frac{1}{2 - \sqrt{3}}\)...
The goals scored by 40 football teams from three league divisions are recorded below No...
A box contains 12 identical balls of which 5 are red, 4 blue, and the rest are green. If ...
Solve the equations: 4x -y = 11; 5x + 2y = 4. ...
If (g(y)) = \(\frac{y - 3}{11}\) + \(\frac{11}{y^2 - 9}\). what is g(y + 3)?...
If cos (x + 25)o = sin 45o, find the value of x...
The mean of the numbers 1.2, 1.0, 0.9, 1.4, 0.8, 0.8, 1.2 and 1.1 is ...