Mr. kim is 25 years older that his daughter. in 10 years Mr. Kim will be twice as old as his daughter will be. How old is each now?

Mr. Kim is presently 40 years old, and his daughter is 15 years old.

Step-by-step explanation:

K is Mr Kim's present age

D=his daughter's present age.

K=D+25; or Mr. Kim is his daughter's age plus 25 years.

K+10=2 (D+10); or in 10 years, Mr Kim will be twice daughters age

Substitute the K from the first equation into the second equation and then solve for variable D.

(D+25) + 10 = 2 (D+10) Simplify.

D+35 = 2D+20 You must subtract D from both sides.

35 = D+20 Lastly, subtract 20 from both sides.

15 = D or D = 15

Mr Kim's daughter's is 15 years old.

Mr Kim's age is D+25

15+25 = 40 years old.

Kim 40 years old and daughter 15 years old