Question

a number consists of two digits whose sum is 8 if 19 is added to the number the digit are is reserved find the number​

Answer 1

Answer:

27 the cube root of 3 is terminated decimal and rational number

Answer 2

Answer:

Step-by-step explanation:

let the two digit number = 10 x + y

if 19 is added,

then (10 x + y) + 19 = 10 y + x

         (10 x - x) + (y - 10 y)  = -19

             9 x - 9 y = - 19

              9 y - 9 x = 19

     x + y  = 8

          y  = 8 - x

      9(8-x) - 9 x = 19

     72 - 9 x - 9 x = 19

   -18 x  = 19 -72

   - 18 x = - 53

     x = 53/18