SOLUTION: John is twice as old as his sister Mary. Mary's age is 1/6 of the age of her mother. Their mother is 30. How old are John and Mary?
Algebra.Com
Question 280623: John is twice as old as his sister Mary. Mary's age is 1/6 of the age of her mother. Their mother is 30. How old are John and Mary?
Answer by JBarnum(2146) (Show Source): You can put this solution on YOUR website!
John Mary X=mother
J=2M
M=(1/6)X
X=30
M=5
J=10
RELATED QUESTIONS
John is twice as old as his sister Mary. Mary's age is 1/6 the age of her mother. Their... (answered by richwmiller)
John is 10 years younger than two times Mary. Mary’s age is to her mother’s age as John’s (answered by stanbon,TeachMath,greenestamps)
John is exactly half his mother’s age. The total of their ages is 60. When John reaches... (answered by ewatrrr,richwmiller)
John is twice as as old as mary.If sum of sqeare of their ages is 125,find mary... (answered by Fombitz)
Mary's mother is 3 times as old as Mary, 4 years ago Mary was 1/4 her mothers age. How... (answered by ewatrrr)
Mary is 12 years old. Robin her mother is 35.
a. Write an expression for the person’s... (answered by Mathtut)
The sum of the ages of John and Mary is 32. Four years ago, John was twice as old as... (answered by josgarithmetic,ikleyn)
Mary is the younger than her sister Joan. The sum of their age is 15. Twice Joan’s age... (answered by marcsam823)
Mary is the younger than her sister Joan. The sum of their age is 15. Twice Joan’s age... (answered by checkley77)