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anonymous

  • one year ago

WILL FAN AND MEDALLL PLZZZ HELPPP!! Which of the following correctly uses absolute value to show the distance between –70 and 13? A) |–70 – 13| = |–83| = –83 units B) |–70 – 13| = |–83| = 83 units C) |–70 + 13| = |–57| = 57 units D) |–70 + 13| = |–57| = –57 units

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  1. anonymous
    • one year ago
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    To find the distance between any two numbers, you subtract one number from another.

  2. anonymous
    • one year ago
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    In this case, your first number is -70 and your second number is 13.

  3. anonymous
    • one year ago
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    \[-70 - 13\] is the only correct subtraction expression, so you can eliminate C and D.

  4. anonymous
    • one year ago
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    Okay so u would subtract -70 - 13? @math1234

  5. anonymous
    • one year ago
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    Correct, now since you want to find the "distance" between two numbers, you take the absolute value of their difference.

  6. anonymous
    • one year ago
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    So is the answer B? @math1234

  7. anonymous
    • one year ago
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    An absolute value expression by definition is defined as follows: \[\left| \pm x \right| = x\]

  8. anonymous
    • one year ago
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    Yes, its B.

  9. anonymous
    • one year ago
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    Thanks :) Can you help me with one more question? I will give u a medal? @math1234

  10. anonymous
    • one year ago
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    Sure, please go ahead.

  11. anonymous
    • one year ago
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    Jinni opened a bank account. She deposited $87.60 into her account every month for 10 months. She used $25.60 every month to pay for music classes. After 10 months, she used 1 over 4 of the total money left in her account to go to a summer camp for musicians. What is the total amount of money Jinni spent to go to the summer camp? A) $64.00 B)$88.00 C)$155.00 D) $620.00

  12. anonymous
    • one year ago
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    @math1234

  13. anonymous
    • one year ago
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    Ok, first begin by writing the algebraic expression for this problem.

  14. anonymous
    • one year ago
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    Jinni deposited money for 10 months. In total, she must have deposited \[10 \times $87.60\]

  15. anonymous
    • one year ago
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    Okay so far its $876 right? @math1234

  16. anonymous
    • one year ago
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    However, Jinni spends $25.60 each month. So her remaining balance after 10 months is \[10 \times ($87.60 - $25.60) = 10 \times $62.00 = $620.00\]

  17. anonymous
    • one year ago
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    Yes correct. I just subtracted the monthly expenses too.

  18. anonymous
    • one year ago
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    So the answer will be D?

  19. anonymous
    • one year ago
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    Now of that $620.00 in her remaining balance, she spends a quarter of that. How much did she really spend?

  20. anonymous
    • one year ago
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    Look a more carefully at the question, she spends 1 over 4 of her remaining money.

  21. anonymous
    • one year ago
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    Okay so would u divide?

  22. anonymous
    • one year ago
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    Yes, you should divide $620.00 by 4.

  23. anonymous
    • one year ago
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    So its C? @math1234

  24. anonymous
    • one year ago
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    Correct.

  25. anonymous
    • one year ago
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    Thanks for ur help :) @math1234

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