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If 4(r – s) = –2, then what is r, in terms of s ?

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If 4(r – s) = –2, then what is r, in terms of s ?  [#permalink]

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New post 12 Jul 2018, 23:16
00:00
A
B
C
D
E

Difficulty:

  5% (low)

Question Stats:

100% (00:40) correct 0% (00:00) wrong based on 24 sessions

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If 4(r – s) = –2, then what is r, in terms of s ?  [#permalink]

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New post 12 Jul 2018, 23:22
\(4(r-s) = -2\)

\(4r - 4s = -2\)

\(4r = 4s -2\)

\(r = \frac{(4s-2)}{4}\)

\(r = s - \frac{1}{2}\)

Hence option B
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Re: If 4(r – s) = –2, then what is r, in terms of s ?  [#permalink]

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New post 12 Jul 2018, 23:23
Bunuel wrote:
If 4(r – s) = –2, then what is r, in terms of s ?


A) \(\frac{-8}{2}\)

B) \(s - \frac{1}{2}\)

C) \(s - \frac{3}{2}\)

D) \(s + 2\)

E) \(2s\)


Given, 4(r – s) = –2
Or, \(r-s=\frac{-2}{4}=\frac{-1}{2}\)
Or, \(r=s-\frac{1}{2}\)

Option. (B)
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Re: If 4(r – s) = –2, then what is r, in terms of s ?  [#permalink]

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New post 12 Jul 2018, 23:26
Bunuel wrote:
If 4(r – s) = –2, then what is r, in terms of s ?


4(r – s) = –2
r – s = –1/2
r = s - 1/2

Hence, B.
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Re: If 4(r – s) = –2, then what is r, in terms of s ?  [#permalink]

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New post 13 Jul 2018, 03:02
Bunuel wrote:
If 4(r – s) = –2, then what is r, in terms of s ?


A) \(\frac{-8}{2}\)

B) \(s - \frac{1}{2}\)

C) \(s - \frac{3}{2}\)

D) \(s + 2\)

E) \(2s\)



Given

4( r-s ) = -2

2( r-s) = -1

2r - 2s = -1

2r = 2s -1

r = (2s-1) / 2

r = s - 1/2.


Thus the best answer is B.
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Re: If 4(r – s) = –2, then what is r, in terms of s ? &nbs [#permalink] 13 Jul 2018, 03:02
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