anonymous
  • anonymous
ok one more inequality question plz pic in comments
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.
schrodinger
  • schrodinger
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
anonymous
  • anonymous
I think the answer is B but can someone check me
anonymous
  • anonymous
@Directrix
anonymous
  • anonymous
@mathmale

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More answers

mathmale
  • mathmale
Look at the left term. It's a fraction, right? How would you go about re-writing this inquality so that you no longer have fractions? Is there an LCD here? Or is there another way in which you could remove the fraction?
anonymous
  • anonymous
So my answer is wrong
mathmale
  • mathmale
Aw, come on. Let's discuss the question first. And don't automatically assume that you're wrong.
mathmale
  • mathmale
I truly dislike dealing in answers. For me, it's importat to help you learn HOW to solve these problems. Then the correct answers will come almost automatically.
anonymous
  • anonymous
ok so this is what i did first:
mathmale
  • mathmale
Cool. That's what I wanted to see.
anonymous
  • anonymous
|dw:1449899087982:dw|
anonymous
  • anonymous
at the start i tried 3 but it didnt work so then i tried 75 and that is how i got B
mathmale
  • mathmale
Our objective: clear the inequality of fractions. One possible method: Multiply both sides of the inequality by 5. Why 5?
mathmale
  • mathmale
\[\frac{ -t }{ 5 }\ge15\]
mathmale
  • mathmale
We want to clear this inequality of fractions.
mathmale
  • mathmale
So, we need to multiply both sides of the inequality by what quantity?
anonymous
  • anonymous
|dw:1449899381720:dw|
mathmale
  • mathmale
Well, i was hoping you'd say "We have to multiply both sides of the inequality by 5, to clear fractions."
mathmale
  • mathmale
Multiply both sides by 5:\[\frac{ -t }{ 5 }\ge15\]
anonymous
  • anonymous
|dw:1449899411738:dw|
mathmale
  • mathmale
|dw:1449899517409:dw|
anonymous
  • anonymous
|dw:1449899540087:dw|
anonymous
  • anonymous
so then 15*5=75
mathmale
  • mathmale
|dw:1449899575849:dw|
mathmale
  • mathmale
yes: 15*5 = 75. But we have to work with the whole inequality at one time.
anonymous
  • anonymous
ok so i have t on 1 side and 75 on the other
mathmale
  • mathmale
|dw:1449899706693:dw|
anonymous
  • anonymous
i got to go sorry but can you just tell me if its is correct
mathmale
  • mathmale
More accuratelly, you have -t on the left side and 75 on the other. Agreed?
mathmale
  • mathmale
To solve for positive t, you have to multiply both sides by (-1) AND (important) reverse the direction of the inequality sign. Therefore, the answer is t>-75.
mathmale
  • mathmale
come back tomorrow and we'll have more math fun.
anonymous
  • anonymous
ok thanks i will be on openstudy at about the same time or earlier
mathmale
  • mathmale
Cool. Good night!
anonymous
  • anonymous
ok bye thanks so much
anonymous
  • anonymous
Good night
mathmale
  • mathmale
You're welcome!
anonymous
  • anonymous
@mathmale
mathmale
  • mathmale
|dw:1449950548196:dw|
mathmale
  • mathmale
Simplify this expression.
anonymous
  • anonymous
|dw:1449950669170:dw|
mathmale
  • mathmale
|dw:1449950759353:dw|
anonymous
  • anonymous
so like this|dw:1449950823845:dw|
anonymous
  • anonymous
|dw:1449950878110:dw|
mathmale
  • mathmale
Very good. Now, how would you check this?
anonymous
  • anonymous
by doing the opposite of what i just did so multiplication
mathmale
  • mathmale
Where is the original inequality? Choose a number from the set "t is equal to or smaller than -75" and subst. that value of t into the original inequality.
mathmale
  • mathmale
Choose a t value that satisfies YOUR final result. t = ??
anonymous
  • anonymous
t = less than -75
mathmale
  • mathmale
Yes. choose a t value that satisfies that.
anonymous
  • anonymous
so like one number not a equation
mathmale
  • mathmale
yes, just one t value.
anonymous
  • anonymous
i dont know can -76 be it
mathmale
  • mathmale
of course. Now go back to the original inequality that you first posted. substitute -76 for t. Is that inequality now true or false?
mathmale
  • mathmale
Please show your work, as before. thx.
anonymous
  • anonymous
|dw:1449951404647:dw|
mathmale
  • mathmale
That means your solution is correct. congrats!
anonymous
  • anonymous
thanks so the final answer will be B
mathmale
  • mathmale
You're welcome! Glad to be of help.
anonymous
  • anonymous
but the final answer is B right and thanks so much for your time
mathmale
  • mathmale
Sorry, I'm too lazy ;) to go look up answer B. I trust you to do that correctly.
anonymous
  • anonymous
answer B is |dw:1449951609010:dw|
anonymous
  • anonymous
oh so thad wouldnt make sense A will though.
anonymous
  • anonymous
|dw:1449951653478:dw|
mathmale
  • mathmale
But that's not what you found, is it? I'm glad you double-checked, and did that by yourself.
mathmale
  • mathmale
In words, "t is equal to or less than -75." Example: -76 satisfies that inequality.
anonymous
  • anonymous
ok so now the final answer will be A yes?
mathmale
  • mathmale
If you substitute t=-76 into the inequality A and the inequality is TRUE, yes, A is the final answer. You know how to do that.
anonymous
  • anonymous
ok thanks again for everything and your time and all that stuff sorry it took so long
mathmale
  • mathmale
Looking forward to working with you again! Great persistence. Take care!
anonymous
  • anonymous
You too!

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