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Math Help - Word Problem Very Basic

  1. #1
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    Word Problem Very Basic

    Hey guys i cant seem to understand much word problems.. for example

    "The sum of a number and six, multiplied by two results in twenty-two"

    I need a math expression out of that.

    If you have time can you please give me some hints on how to solve word problems. May you also tell me some words that i need to know to solve words problems for Example "of" Means multiply. If you know more please list them that would be very helpful.
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  2. #2
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    Hello, frankpham12!


    Let x = the number.


    \underbrace{\text{The sum of a number and six }}_{x \:+\: 6}\; \underbrace{\text{ multiplied by two }}_{\times\: 2}\; \underbrace{\text{ results in }}_{=} \;\underbrace{\text{ twenty-two}}_{22}


    There is our equation . . . (x+6)\cdot2 \:=\:22

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  3. #3
    Rhymes with Orange Chris L T521's Avatar
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    Quote Originally Posted by frankpham12 View Post
    Hey guys i cant seem to understand much word problems.. for example

    "The sum of a number and six, multiplied by two results in twenty-two"

    I need a math expression out of that.

    If you have time can you please give me some hints on how to solve word problems. May you also tell me some words that i need to know to solve words problems for Example "of" Means multiply. If you know more please list them that would be very helpful.
    Let's break it down:

    The sum of a number and six, multiplied by two results in twenty-two.

    Let n be this mystery number.

    Then, sum of a number and six can be represented mathematically as n+6

    Now,
    multiplied by two means that we take the previous result, and double it. Mathematically, it would be the same as saying 2\left(n+6\right)

    Finally, the previous result results in twenty-two. This now gives us the equation 2\left(n+6\right)=22

    Now you can solve for n.

    EDIT: Soroban beat me.
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  4. #4
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    Wink

    Quote Originally Posted by Soroban View Post
    Hello, frankpham12!


    Let x = the number.


    \underbrace{\text{The sum of a number and six }}_{x \:+\: 6}\; \underbrace{\text{ multiplied by two }}_{\times\: 2}\; \underbrace{\text{ results in }}_{=} \;\underbrace{\text{ twenty-two}}_{22}


    There is our equation . . . (x+6)\cdot2 \:=\:22

    omg thats was so easy thank You
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  5. #5
    Member TheMasterMind's Avatar
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    Quote Originally Posted by frankpham12 View Post
    Hey guys i cant seem to understand much word problems.. for example

    "The sum of a number and six, multiplied by two results in twenty-two"

    I need a math expression out of that.

    If you have time can you please give me some hints on how to solve word problems. May you also tell me some words that i need to know to solve words problems for Example "of" Means multiply. If you know more please list them that would be very helpful.
    X+6*2=22
    2x+12=22
    2x=10
    x=10/2
    x=5

    checking
    5+6*2=22
    11*2=22
    22=22
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  6. #6
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    Quote Originally Posted by Soroban View Post
    Hello, frankpham12!


    Let x = the number.


    \underbrace{\text{The sum of a number and six }}_{x \:+\: 6}\; \underbrace{\text{ multiplied by two }}_{\times\: 2}\; \underbrace{\text{ results in }}_{=} \;\underbrace{\text{ twenty-two}}_{22}


    There is our equation . . . (x+6)\cdot2 \:=\:22
    Quote Originally Posted by Chris L T521 View Post
    Let's break it down:

    The sum of a number and six, multiplied by two results in twenty-two.

    Let n be this mystery number.

    Then, sum of a number and six can be represented mathematically as n+6

    Now,
    multiplied by two means that we take the previous result, and double it. Mathematically, it would be the same as saying 2\left(n+6\right)

    Finally, the previous result results in twenty-two. This now gives us the equation 2\left(n+6\right)=22

    Now you can solve for n.

    EDIT: Soroban beat me.
    what does "And" mean in word problems
    Last edited by mr fantastic; January 4th 2009 at 01:47 PM. Reason: Merged the two posts
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  7. #7
    Member TheMasterMind's Avatar
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    Quote Originally Posted by frankpham12 View Post
    what does "And" mean in word problems
    If you looked at the above work and matched it with the problem you would see it means addition.
    Last edited by TheMasterMind; January 4th 2009 at 10:21 AM.
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  8. #8
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    Quote Originally Posted by TheMasterMind View Post
    If you looked at the above work and matched it with the problem you would see it means addition.
    no but i thought sum mean addition
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  9. #9
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    whats does "AND" mean in word problems

    Quote Originally Posted by Chris L T521 View Post
    Let's break it down:

    The sum of a number and six, multiplied by two results in twenty-two.

    Let n be this mystery number.

    Then, sum of a number and six can be represented mathematically as n+6

    Now,
    multiplied by two means that we take the previous result, and double it. Mathematically, it would be the same as saying 2\left(n+6\right)

    Finally, the previous result results in twenty-two. This now gives us the equation 2\left(n+6\right)=22

    Now you can solve for n.

    EDIT: Soroban beat me.
    does it mean to add
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  10. #10
    Member TheMasterMind's Avatar
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    Quote Originally Posted by frankpham12 View Post
    does it mean to add
    If you looked at the above work and matched it with the problem you would see it means addition.
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  11. #11
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    Quote Originally Posted by frankpham12 View Post
    Hey guys i cant seem to understand much word problems.. for example

    "The sum of a number and six, multiplied by two results in twenty-two"

    I need a math expression out of that.

    If you have time can you please give me some hints on how to solve word problems. May you also tell me some words that i need to know to solve words problems for Example "of" Means multiply. If you know more please list them that would be very helpful.
    As far as I can see, the question has been answered. Given the direction of the thread, I see no usful purpose in keeping it open.

    Thread closed.
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