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by Mclaughlin » Fri Aug 01, 2008 5:37 pm
Which of the following inequalities is equivalent to 10 – 2x > 18?
(A) x > -14
(B) x > -4
(C) x > 4
(D) x < 4
(E) x < -4
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by sudhir3127 » Fri Aug 01, 2008 10:04 pm
My Answer is D
Which of the following inequalities is equivalent to 10 – 2x > 18
-2x >8

since there is a negative we have to change the sign of inequality..

therefore it will be X<4
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by pepeprepa » Sat Aug 02, 2008 12:15 am
E for me

10 – 2x > 18
-8>2x
-4>x


If you are not sure you can fastly try: with -6 the inequality is ok, with -2 it is not and with 2 it is not.
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by parallel_chase » Sat Aug 02, 2008 1:04 am
E for me as well, I think Sudhir did everything right except when changing the sign he forgot to put the negative sign.

Whats the OA?
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by egybs » Sat Aug 02, 2008 1:22 am
definitely e... this is a super basic question.
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by pepeprepa » Sat Aug 02, 2008 1:28 am
Kind of basic question you have after 20" that's true, but it is better to check 20" more to be totally sure, that's my view.
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by egybs » Sat Aug 02, 2008 1:33 am
huh? je n'ai pas compris...
pepeprepa wrote:Kind of basic question you have after 20" that's true, but it is better to check 20" more to be totally sure, that's my view.
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by pepeprepa » Sat Aug 02, 2008 1:41 am
I just say that when questions seem too easy (when you have the answer after 20"), I always find it dangerous because you speed and do not always check your answer given you totally trust your method. In other words, I don't like this kind of fast question.
I can explain it in french if you want :wink:
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by egybs » Sat Aug 02, 2008 1:45 am
:-) t'as raison.. j'ai toujours peur que les questions pareilles sont trop simples... En particulier avec les DS.

d'ou en france viens-tu?
pepeprepa wrote:I just say that when questions seem too easy (when you have the answer after 20"), I always find it dangerous because you speed and do not always check your answer given you totally trust your method. In other words, I don't like this kind of fast question.
I can explain it in french if you want :wink:
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by pepeprepa » Sat Aug 02, 2008 2:00 am
Je viens de Paris.

Hope I can help you one day with your french!
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by egybs » Sat Aug 02, 2008 2:06 am
Merde! est ce que mon francais est vraiment si mal? Je suis un anglophone de montreal originellement, mais j'ai aussi passe 6 mois a paris en echange.
pepeprepa wrote:Je viens de Paris.

Hope I can help you one day with your french!
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by Mclaughlin » Sat Aug 02, 2008 9:06 am
yes the OA is E.

thanks!
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