Asked by SHINee
In 10 years, Mr. Yen will be twice as old as his daughter. Their ages now add up to 61. How old is each person.
Can you show me all the steps because I have a unit test tmw:) thankyou
Can you show me all the steps because I have a unit test tmw:) thankyou
Answers
Answered by
Reiny
present:
daughter ---- x
Mr. Yen ----- 61 -x
10 years from now:
daughter -- x+10
Mr. Yesn -- 61-x +10 = 71-x
at that time, he will be twice as old as she
71-x = 2(x+10)
71-x = 2x + 20
-3x = -51
x = 51/3 = 17
right now she is 17 and he is 44
check:
17+44 = 61 , checks
in 10 years she will be 27
in 10 years he will be 54
is 54 twice 26 ?
Yeahhh!
daughter ---- x
Mr. Yen ----- 61 -x
10 years from now:
daughter -- x+10
Mr. Yesn -- 61-x +10 = 71-x
at that time, he will be twice as old as she
71-x = 2(x+10)
71-x = 2x + 20
-3x = -51
x = 51/3 = 17
right now she is 17 and he is 44
check:
17+44 = 61 , checks
in 10 years she will be 27
in 10 years he will be 54
is 54 twice 26 ?
Yeahhh!
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