Question

The sum of two number is 8 and the sum of their recipocal is 8/15 find the number

Answer 1

Answer:

x=2.4,y=5.6

Step-by-step explanation:

x+y=8

1/x+1/y=8/15

let x be 0

0+y=8

y=8

so in (II)equ.

8+x=8/15*8x

8=(64x-15x)/15

120/49=x

2.4=x

putting in equ.(I)

2.4+y=8

y=5.6

Answer 2

Answer:

5 and 3

Step-by-step explanation:

x+y = 8

(1/x)+(1/y) = 8/15

so, x+y / xy = 8/15

so, x+y = 8    and

xy = 15 = 5*3

now, x+y =8 = 5+3

the numbers are 5 and 3