5. The ages of two sisters can be represented as consecutive odd integers.twelve years ago, the sum of their ages was 8.how old I am?
6. Anna is now four times as old as her brother jong. In 4years, Anna's age will be twice Jong's age then. how old is each now?
7. Father was 28 years old when I was born.the sum of our ages is 84. How old I am?
8.sandy was 25 years old when her son was born. Her present age is 7 years less than three times her son's present age. How old is sandy now?
9. The sum of felisa's age and judge age is 20 felisa's age one year from now will be nine times judges age one year ago. How old is each now?
5. Let x be the age of the younger sister. Therefore, the age of the older sister is x + 2. Twelve years ago, the sum of their ages was 8. So, (x - 12) + (x + 2 - 12) = 8. Solving this equation, we get x = 10. Therefore, the younger sister is 10 years old and the older sister is 12 years old. So, you are 10 years old.
6. Let A be Anna's age and J be Jong's age. We are given that A = 4J. In 4 years, Anna's age will be twice Jong's age. So, A + 4 = 2(J + 4). Substitute A = 4J into this equation, we get 4J + 4 = 2(J + 4). Solving this equation, we get J = 4 and A = 16. Therefore, Anna is 16 years old and Jong is 4 years old.
7. Let x be your age. Your father was 28 years old when you were born, so your father's age is x + 28. The sum of your ages is 84, so x + x + 28 = 84. Solving this equation, we get x = 28. Therefore, you are 28 years old.
8. Let S be Sandy's age and the son's age be x. Sandy was 25 years old when her son was born, so S = x + 25. Her present age is 7 years less than three times her son's present age, so S = 3x - 7. Substitute S = x + 25 into this equation, we get x + 25 = 3x - 7. Solving this equation, we get x = 12. Therefore, Sandy is 37 years old now.
9. Let F be Felisa's age and J be Judge's age. The sum of their ages is 20, so F + J = 20. Felisa's age one year from now will be nine times Judge's age one year ago, so F + 1 = 9(J - 1). Substitute F + 1 = 9(J - 1) into F + J = 20, we get 9(J - 1) + J = 20. Solving this equation, we get J = 3 and F = 17. Therefore, Felisa is 17 years old and Judge is 3 years old now.