# X:Y=2:3 find the value of 3x+2y :2x+5y this qus. Is ratio method?

• X:Y=2:3 find the value of 3x+2y :2x+5y this qus. Is ratio method?

Answer #1 | 10/02 2014 09:41
take x=2 and y=3 plug in and the ratio is 12:19
Positive: 31 %
Answer #2 | 10/02 2014 09:46
Well, be cautious with asimov's answer because : x/y = 2/3 does not mean x = 2 and y = 3 what asimov is not saying...; but he nevertheless writes : take x = 2 and y = 3 ... and it works, but only because the expression is made the way it is. so it more details, it gives : if x/y = 2/3 then we have : deviding by y on nominator and denominator (3x+2y) / (2x+5y) = (3 (x/y) + 2) / (2 (x/y) + 5) so (3x+2y) / (2x+5y) = (3 . 2/3 + 2) / (2 . 2/3 + 5) (3x+2y) / (2x+5y) = (3 . 2/3 + 2) / (2 . 2/3 + 5) times 3 on nominator and denominator (3x+2y) / (2x+5y) = (3 . 2 + 2 . 3) / (2 . 2 + 5 . 3) finally: (3x+2y) / (2x+5y) = 12/19 hope it' ll help !!
Positive: 25 %

The lines 3x +2y =0 (1) and 2x-3 y ... x+y=0, x-4y+1-=0,2x+5y-3=0. 9. Find the equations of the two lines ... 14 = 0, and setting (x', y') = (2, - 3) in ...
Positive: 10 %
x y (2, 3) j k y 522x 1 2 1 2 ... 5y 2 2 2x 1 2y 525 x 1 6y 5 12 ... ALGEBRA Find a value for k so that the line through ...
Positive: 10 %
Full text of "Coordinate geometry" See other formats ...