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If , what is the value of x ? 2 3 4 7 8
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29 Jan 2018, 15:18
29 Jan 2018, 15:18
1
Expert Reply
00:00
Question Stats:
88% (00:33) correct
11% (00:27) wrong based on 34 sessions
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If \(\frac{1}{2x}+\frac{2}{x}=\frac{5}{8}\), what is the value of x ?
A. 2
B. 3
C. 4
D. 7
E. 8
A. 2
B. 3
C. 4
D. 7
E. 8
Drill 1
Question: 15
Page: 496
Question: 15
Page: 496
Re: If , what is the value of x ? 2 3 4 7 8
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30 Jan 2018, 07:47
30 Jan 2018, 07:47
1
sandy wrote:
If \(\frac{1}{2x}+\frac{2}{x}=\frac{5}{8}\), what is the value of x ?
A. 2
B. 3
C. 4
D. 7
E. 8
A. 2
B. 3
C. 4
D. 7
E. 8
Here ,
\(\frac{1}{2x}+\frac{2}{x}=\frac{5}{8}\)
or \(\frac{5x}{2(x)^2}=\frac{5}{8}\)
or \(10(x)^2\) = 40x (cross multiplication)
or x= 4
Re: If , what is the value of x ? 2 3 4 7 8
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04 Mar 2018, 14:26
04 Mar 2018, 14:26
Expert Reply
Explanation
Plug In The Answers starting with choice (C). Choice (C) yields \(\frac{1}{8}+\frac{2}{4}=\frac{1}{8}+\frac{4}{8}=\frac{5}{8}\), so it’s the correct answer.
Plug In The Answers starting with choice (C). Choice (C) yields \(\frac{1}{8}+\frac{2}{4}=\frac{1}{8}+\frac{4}{8}=\frac{5}{8}\), so it’s the correct answer.
