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anonymous

  • one year ago

WILL FAN AND MEDAL PLZZZZ HELP!! A car travels 1/6 of the distance between two cities in 3/5 of an hour. At this rate, what fraction of the distance between the two cities can the car travel in 1 hour? THE ANSWER HAS TO BE A FRACTION!

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  1. anonymous
    • one year ago
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    @KEYS

  2. anonymous
    • one year ago
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    @jdoe0001

  3. anonymous
    • one year ago
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    ANYONE PLZ HELP ME?

  4. Afrodiddle
    • one year ago
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    Hold on.

  5. jdoe0001
    • one year ago
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    \(\large { \begin{array}{ccllll} distance&hour \\\hline\\ \frac{1}{6}&\frac{3}{5}\\ x&1 \end{array}\implies \cfrac{\frac{1}{6}}{x}=\cfrac{\frac{3}{5}}{1}\impliedby \textit{solve for "x"} }\)

  6. jdoe0001
    • one year ago
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    hint: cross-multiply

  7. anonymous
    • one year ago
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    3/30? @jdoe0001

  8. Afrodiddle
    • one year ago
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    I'm afraid not.

  9. jdoe0001
    • one year ago
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    so.. what did you get for the cross-multiplication?

  10. anonymous
    • one year ago
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    3/30 @jdoe0001

  11. jdoe0001
    • one year ago
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    so \(\bf \cfrac{\frac{1}{6}}{x}=\cfrac{\frac{3}{5}}{1} \\ \quad \\ \cfrac{1}{6}\cdot 1=\cfrac{3}{5}\cdot x\) there... what would that give you for "x"?

  12. anonymous
    • one year ago
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    Idk? @jdoe0001

  13. jdoe0001
    • one year ago
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    well... you may want to brush up your fraction multiplication first I'd think

  14. anonymous
    • one year ago
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    What will the answer be? @jdoe0001 Is 3/30 wrong?

  15. jdoe0001
    • one year ago
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    well.. is not that

  16. anonymous
    • one year ago
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    ohh then I don't get it it's a little confusing? @jdoe0001

  17. jdoe0001
    • one year ago
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    \(\bf \cfrac{\frac{1}{6}}{x}=\cfrac{\frac{3}{5}}{1} \implies \cfrac{1}{6}\cdot 1=\cfrac{3}{5}\cdot x \implies \cfrac{1}{6}=\cfrac{3}{5}x\implies \cfrac{1}{6}=\cfrac{3x}{5}\) if you cross-multiply that, and solve for "x".... what would that give?

  18. anonymous
    • one year ago
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    ??????? @jdoe0001 I don't remember learning that

  19. jdoe0001
    • one year ago
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    hmmm wondering how are you meant to solve it then is a direct variation.. .thus why I set it up as a proportion

  20. anonymous
    • one year ago
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    \[\frac{5}{18} \]

  21. anonymous
    • one year ago
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    Is that right @robtobey

  22. anonymous
    • one year ago
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    \[\frac{1}{6}=\frac{3 x}{5} \] Multiply each side by 5/3. The result will be that x has a cooeficient of "1", one.

  23. anonymous
    • one year ago
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    ohhhhh thanks :) can u help me with one more problem? @robtobey

  24. anonymous
    • one year ago
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    Ok. By the way, coefficient was misspelled in my posting above.

  25. anonymous
    • one year ago
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    Ellen wants to purchase a book that is regularly priced at $18. The book is discounted 15%. She also needs to pay a 6% sales tax on the discounted price. What is the total amount Ellen will pay for the book?

  26. anonymous
    • one year ago
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    @robtobey

  27. anonymous
    • one year ago
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    Is the answer 16.22 that's what I got? @robtobey

  28. anonymous
    • one year ago
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    Take 106% of the result of 85% times 18 for the total amount.

  29. anonymous
    • one year ago
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    Is 16.22 wrong? @robtobey

  30. anonymous
    • one year ago
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    That is what I calculated when the final calculation was rounded to the nearest cent. Some stores will probably always round up to the next cent.

  31. anonymous
    • one year ago
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    So that mean its 16.218 your answer? @robtobey

  32. anonymous
    • one year ago
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    16.218, not yet rounded, is what the Mathematica program delivered.

  33. anonymous
    • one year ago
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    So what's the answer then? @robtobey

  34. anonymous
    • one year ago
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    My guess is 16.22, which is 16.218 rounded to the nearest cent.

  35. anonymous
    • one year ago
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    Okay I will put 16.22 but thanks for your time and help! :) @robtobey

  36. anonymous
    • one year ago
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    Your welcome and thank you for the medal.

  37. anonymous
    • one year ago
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    Np @robtobey

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