Asked by mary
Jack is twice as old as he was 5 years ago. His mother was then six times as old as he was. She is now 35 years old.
how old is jack?
how old is jack?
Answers
Answered by
Reiny
5 yrs ago Jack was x years old
5 years ago his mom was 6x
now his mom is 6x+5
and now Jack is x+5
6x+5 = 35
6x = 30
x = 5
Jack is now 10
check:
5 yrs ago: Jack was 5, his mom was 6(5) = 30
now: Jack is 10, his mom is 6(5) + 5 = 35
5 years ago his mom was 6x
now his mom is 6x+5
and now Jack is x+5
6x+5 = 35
6x = 30
x = 5
Jack is now 10
check:
5 yrs ago: Jack was 5, his mom was 6(5) = 30
now: Jack is 10, his mom is 6(5) + 5 = 35
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