Quantcast

A community for students. Sign up today!

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

dasDaName

  • 2 years ago

Solve 0.7x = 22. Round your answer to the nearest hundredth. A. x ≈ -7.12 B. x ≈ 8.45 C. x ≈ -8.67 D. x ≈ 9.34

  • This Question is Closed
  1. yummydum
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    \[0.7x=22\]divide both sides by \(0.7\) to isolate x:\[{\cancel{0.7}{x}\over\cancel{0.7}}={22\over0.7}\]\[x={22\over0.7}\]\[x=31.428571...\]\[x\approx31.43\]i think your options are incorrect, check to make sure

  2. dasDaName
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    i dont have any other options, other than these 4

  3. yummydum
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    well then the options are incorrect because what i worked out is accurate...maybe its a misprint?

  4. dasDaName
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    i dont think so....this is how long it took to solve this one : x=log35 log35=log105log103≈0.698970.47712≈1.46

  5. yummydum
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    @UnkleRhaukus help?

  6. sunnymony
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    31.42is ans

  7. technofable
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    i think u wrote down the question incorrectly. it should be \[0.7^{x}=22\] then using the base change formula it should be \[x= \frac{ \log22 }{ \log0.7 } \approx -8.67\]

  8. sunnymony
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    good

  9. Not the answer you are looking for?
    Search for more explanations.

    • Attachments:

Ask your own question

Ask a Question
Find more explanations on OpenStudy

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.