Question

The sum of our numbersis 24. When another number is added, their average bdcomes 7. Find the number.

Answer 1

Step-by-step explanation:

let the numbers be x & y respectively,

let the another number be z

by the given statement,

x + y = 24 -------(i)

x + y + z / 3 = 7 --------(ii)

can anyone tell what do we have to do after this, please!

thankyouu :))

Answer 2

Answer:

-3

Step-by-step explanation:

x+y =24

let the other no. is z,

average of x,y,z is 7

(x+y+z)/3 =7

x+y+z =21

24+ z =21

z= -3

when -3 is added to x,y the average =7

______________________________

you substitute I in ii

then multiply whole ii with 3

you get 24+z=21

z=21-24=-3

z is the no.