word problems

posted by .

I can never do word problems...please help!!!!


Larry is 8 yrs older than his sister.In 3 yrs, hr will be twice as old as she will be then.how old is each now?

  • word problems -

    first use a random number for the sister's age. one, for example. so larry is 8 years older than that. 1+8=9, so larry is 9. in 3 years he will be 12, and his sister will be 4. 12 isnt twice as old as 4, so the sister is not 1. Try for yourself with different ages, like 2, 3, 4, 5, 6, and 7.

  • word problems -

    use x to represent his sisters age
    his sister is x so larry is x+8
    in 3 years the sister will be x+3 and larry will be 2x+3 because he is twice as old as her plus 3 years and then solve
    x+8=2x+3
    the answer is 5 his sister is 5 and he is 13

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. math

    i never can do word problems....please help... i got 7 of them.....these are word for word 1) Larry is 8 yrs older than his sister.In 3 yrs, hr will be twice as old as she will be then.how old is each now?
  2. 9th grade math word problems

    i never can do word problems....please help... i got 7 of them.....these are word for word 1) Larry is 8 yrs older than his sister.In 3 yrs, hr will be twice as old as she will be then.how old is each now?
  3. math 7

    Nila is now x years old. Three yrs ago, her brother ricky was twice as old as she, write rickys age ten yrs frm now in terms of x. (With solution pls) tnx...
  4. math 7

    Nila is now x years old. Three yrs ago, her brother ricky was twice as old as she, write rickys age ten yrs frm now in terms of x. (With solution pls) tnx...
  5. Maths

    Fred is 10 yrs older than Ted. In 3 yrs time Fred will be 3 times as old as Ted. Let Fred be x yrs old now. Write an equation to represent this situation. Solve equation and state how old each person is now.
  6. Algebra

    Let x equal the age, in human years, for a dog that is 2 years old or older. For each of your chosen breeds, write an expression to model its age in dog years. [Hint: Use (x - 2) in each expression.] These are the dog years: 2yrs: …
  7. Math

    Patel is 5 yrs older than sam. In 2 yrs time,Patel will be twice as old as sam. How old is each now?
  8. Algebra

    Let x equal the age, in human years, for a dog that is 2 years old or older. For each of your chosen breeds, write an expression to model its age in dog years. [Hint: Use (x-2) in each expression.] the dogs are 2yrs: 23 yrs old 3yrs: …
  9. Math

    Let x equal the age, in human years, for a dog that is 2 years old or older. For each of your chosen breeds, write an expression to model its age in dog years. [Hint: Use (x-2) in each expression.] the dogs are 2yrs: 23 yrs old 3yrs: …
  10. Geometry

    Let x equal the age, in human years, for a dog that is 2 years old or older. For each of your chosen breeds, write an expression to model its age in dog years. [Hint: Use (x-2) in each expression.] the dogs are 2yrs: 23 yrs old 3yrs: …

More Similar Questions