Question

the sum of two rational numbers is -7.if one of the numbers is -15/19,the other number is

Answer 1

Answer:

Step-by-step explanation:

Let the two rational numbers be x and y.

The sum of two rational number is  

5

13

​  

 

∴x+y=  

5

13

​  

 ………....(1)

The value of one rational number is given

∴ Let it be x.

∴x=  

5

22

​  

 

∴ from (1)

5

22

​  

+y=  

5

13

​  

 

y=  

5

13

​  

−  

5

22

​  

 

=−  

5

9

​  

 

∴ The second number is −  

5

9

​  

.

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Answer 2

Answer:

let the two rational numbers be x and y

x + y = -7

If x = -15/19

y = ?

-15/19 + y = -7

y = -7 + (15/19)

y = -118/19

Hope this helps you ☺