math

John's age is seventeen years less than twice Isabella's age. Together, the sum of their ages is 40. How old is John?
I did x+(2x-17)=40 I got x=19 but it keeps saying i got it wrong can you please help.

  1. 👍
  2. 👎
  3. 👁
  1. Hard to tell, since you did not define your x

    I will let Isabella's age be x years
    then John is 2x - 17

    x + 2x-17 = 40
    3x = 57
    x = 19

    So Isabella is 19, but it asked for John's age.
    John is 2(19) - 17 = 21

    1. 👍
    2. 👎

Respond to this Question

First Name

Your Response

Similar Questions

  1. Math

    I am three years younger than my brother, and i am 2 years older than my sister. My mom's age is one less than three times my brother's age. When you add all our ages, you get 87. What are our ages?

  2. Simultaneous equation

    Ann is older than Betty. Their ages in years are such that twice the square of Betty's age subtracted from the square of Ann's age gives a number equal to 6 times the difference of their ages. Given also that the sum of their ages

  3. Algebra 2

    "My husband's age," remarked a lady the other day, "is represented by the figures of my own age reversed. He is my senior, and the difference between our ages is one-eleventh of their sum." 10x + y = husband's age 10y + x = wife's

  4. Maths ( Higher Level) Simultaneous Equations.

    A mother is x years old, her son is y years old and the sum of theirs ages together is 58 years. Five years ago, the mother was five times as old as the son. Write two equations in x and y and solve them to find the age of their

  1. Math

    the ratio of father's age to his son age is 8:3. in 5 year's time the sum of their ages will be 54. how old are they

  2. Mathematics

    A boys' age is x years and his father's age is five years as old as his son . what will be the sum of their ages in ten years time. These age is now 17.how old will he be in x years time and what is the sum of his age in x years

  3. Algebra

    Malcolm’s mother is 27 years older than he is and their ages are both two digit numbers. If Malcolm swaps the digits in his age he gets his mother’s age. a) How old is Malcolm if the sum o the digits in his age is 5? b) What

  4. algebra

    "Tanya's age is ten years greater than half Aarons age. If the sum of their ages is 55, how old is Tanya?" can who ever solves this explain how to do it too???

  1. math

    my son is x year old ,in five years time i will be twice his age and both our ages will be multiples of 10.the sum of ages will be between 50 and 100.how old am i

  2. Algebra

    Aris is twice as old as Rico while Jay is 24 years younger than Aris. In half of Aris' age six years ago was three less than one-half the sum of Rico's age in four years and Jay's present age, find the ages of each.

  3. algebra

    the sum of the age of a girl and her brother is 26 year 3 years ago her age was 4 time the age of her brother. find their present age?

  4. Math

    Sheila's age is two years more than twice Nicole's age. The sum of their ages is the same as Steven's age. If Steven's age is ten years less than five times Nicole's age, ,find the age of each. Write a verbal model!

You can view more similar questions or ask a new question.