Question

solve the pair of equations: 2/x+3/y=5, 4/x+5/y=9.​

Answer 1

Answer:

We have,

2x+3y=9 ……. (1)

3x+4y=5 …… (2)

Now,

y= 39−2x

On putting the value of y, in equation (2), we get

3x+4( 39−2x )=5

3x+ 3

36−8x=5

9x+36−8x=15

x=15−36

Now, put the value of x in equation (1), we get

y= 39−2(−21)

y= 39+42

y= 351 =17

Answer 2

Answer:

Blue Revolution refers to the time of intense growth in the worldwide aquaculture industry from the mid-1960s to present. The aquaculture industry has been growing at an average rate of 9% a year. Worldwide aquaculture production has now reached 50 million tons, up from two million in 1950.