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anonymous

  • one year ago

HELP WILL MEDAL AND FAN Solve the following problem by working backward. Show and explain each step. Maria received a gift of cash from her grandmother. She put two-thirds of the money in her savings account, spent twenty-five dollars on a pair of jeans, and spent half the remaining money on a DVD. If Maria has eighteen dollars left over, how much money did she receive from her grandmother?

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  1. anonymous
    • one year ago
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    What have you gotten so far?

  2. anonymous
    • one year ago
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    nothing i need help

  3. anonymous
    • one year ago
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    Well, let's go through this step by step. If she has 18 after spending half on the DVD, that means she had 2*18 before the DVD, right?

  4. anonymous
    • one year ago
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    yeah

  5. anonymous
    • one year ago
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    And 2*18 equals what?

  6. anonymous
    • one year ago
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    36

  7. anonymous
    • one year ago
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    Right. So now we take the amount spent on jeans and add it to 36.

  8. anonymous
    • one year ago
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    25+36=61

  9. anonymous
    • one year ago
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    Right. So since she spent put 2/3 in the savings account, that means we have 1/3 of the total right now at 61. So what will we multiply the 61 by to get the total?

  10. anonymous
    • one year ago
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    2/3

  11. anonymous
    • one year ago
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    Here, I'll write in equation form to make it a little easier. \[\frac{ 1 }{ 3 }*x=1\] What would x be?

  12. anonymous
    • one year ago
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    2/3

  13. anonymous
    • one year ago
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    idk if im right

  14. anonymous
    • one year ago
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    We're MULTIPLYING, not adding.

  15. anonymous
    • one year ago
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    oh then idk

  16. anonymous
    • one year ago
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    3?

  17. anonymous
    • one year ago
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    Hint: It's the inverse of 1/3. Right, it would be 3.

  18. anonymous
    • one year ago
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    So 61*3=what?

  19. anonymous
    • one year ago
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    ok thanks

  20. anonymous
    • one year ago
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    No problem :)

  21. anonymous
    • one year ago
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    $183

  22. anonymous
    • one year ago
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    @LegendarySadist

  23. anonymous
    • one year ago
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    Yes, that would be it.

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