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evergirl

  • 3 years ago

Robert purchased $2,000 worth of U.S. savings bonds. If bonds are sold in $50 or $100 denominations only, which of the following CANNOT be the number of U.S. savings bonds that Robert purchased?

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  1. sasogeek
    • 3 years ago
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    ...?

  2. evergirl
    • 3 years ago
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    I got 27

  3. evergirl
    • 3 years ago
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    no its 50 my bad

  4. sasogeek
    • 3 years ago
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    you said, "...which of the following....", but there's no options? :/

  5. evergirl
    • 3 years ago
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    29 27 30 40 50

  6. evergirl
    • 3 years ago
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    there they r^^^^

  7. sasogeek
    • 3 years ago
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    how would u solve for 27 and 29?

  8. evergirl
    • 3 years ago
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    50x+100y=2000 x+2y=40 neither can be 29 neither can be 27 if x is 30 then y is 5 if x is 40 then he only bought $50 bonds neither can be 50 dang! im confused now O.o

  9. sasogeek
    • 3 years ago
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    if it's 40, then he bought only $50 bonds, hence $50*40=$2000 if it's 30, then he bought 10 $100 bonds, and 20 $50 bonds, hence 10*$100 +20*$50=$1000+$1000=$2000 if it's 50, it's not possible, cos no matter the ratio, he will buy more than $2000 worth of bonds i don't know how to go about 27 and 29

  10. sasogeek
    • 3 years ago
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    are you allowed to make multiple choices of answers or just 1?

  11. evergirl
    • 3 years ago
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    more than one

  12. evergirl
    • 3 years ago
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    so its 27 and 50?

  13. evergirl
    • 3 years ago
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    and 29?

  14. sasogeek
    • 3 years ago
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    that's what i would go for, i'm convinced those are the answers :) 27,29, and 50

  15. evergirl
    • 3 years ago
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    Thanks so much saso!!!!!

  16. sasogeek
    • 3 years ago
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    anytime :)

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