Question

if (x-y)=6 and xy=14 find the value of (x+y)​

Answer 1

Answer:

Let ,work done by A be 1 unit per day

For 20 days=20 units of work is done.

For 5 days=5 units of work is done .

Outoff 20 days ,15 days work of A is done by B in 10 days

So, per day work of B =15/10=1.5

And we had assumed per day work of A is 1 unit.

So, together per day work of A and B is 1+1.5=2.5

No. Of days A and B if together work=

Total unit of work/per day work of both

20/2.5=8

Step-by-step explanation:

hope you understand

Answer 2

Answer:

9 any scouse you coment

Step-by-step explanation:

x=7 y=2

so x+y=9

7+2=9