Quantcast

Got Homework?

Connect with other students for help. It's a free community.

  • across
    MIT Grad Student
    Online now
  • laura*
    Helped 1,000 students
    Online now
  • Hero
    College Math Guru
    Online now

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

horsealot203 Group Title

5/4(a-8) =2/3

  • one year ago
  • one year ago

  • This Question is Closed
  1. T0mmy Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    Do you want to find 'a'?

    • one year ago
  2. horsealot203 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    yes

    • one year ago
  3. howdomath Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    Being by isolating the variable, to do this we divide both sides of the equation by 5/4. Remember that dividing a fraction by another fraction is really multiplying the first fraction by the reciprocal of the dividing fraction. \[(a - 8) = \frac{ 2 }{ 3 } \times \frac{ 4 }{ 5 }\] We get\[a - 8 = \frac{ 8 }{ 15 }\] Now you add 8 to both sides to get a on it's own..\[a = \frac{ 8 }{ 15 } +8\] Now we need a common denominator to add these fractions, so..\[a = \frac{ 8 }{ 15 } +\frac{ 120 }{ 15 }\] Now we have \[a = \frac{ 128 }{ 15 }\]

    • one year ago
  4. horsealot203 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    okkk...

    • one year ago
  5. howdomath Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    What doesn't make sense, I'll try to explain better.

    • one year ago
  6. horsealot203 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    so can you simplify the fraction?

    • one year ago
  7. whpalmer4 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    No, factors of 15 are 3,5, and 128 is not divisible by either one.

    • one year ago
  8. T0mmy Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    No but you can create a mixed fraction.

    • one year ago
  9. howdomath Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    Well look at the factors of 15, there's 1, 3, 5 and 15. 128 isn't divisible by any of those, so it can't be simplified. If you want it in mixed number it's:\[8\frac{ 8 }{ 15 }\]

    • one year ago
  10. horsealot203 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    The answers I can choose from are 6 14/15 7 1/15 8 8/15 8 2/3

    • one year ago
  11. whpalmer4 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    You could write it as a mixed fraction = \[8\frac{ 8 }{ 15 }\]

    • one year ago
  12. horsealot203 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    ok, great. Thank you so much!

    • one year ago
    • Attachments:

See more questions >>>

Your question is ready. Sign up for free to start getting answers.

spraguer (Moderator)
5 → View Detailed Profile

is replying to Can someone tell me what button the professor is hitting...

23

  • Teamwork 19 Teammate
  • Problem Solving 19 Hero
  • You have blocked this person.
  • ✔ You're a fan Checking fan status...

Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.

This is the testimonial you wrote.
You haven't written a testimonial for Owlfred.