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If 1.5/(0.2+x)=5, then x=

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If 1.5/(0.2+x)=5, then x= [#permalink]

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solving for x we get x = 0.1
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Re: If 1.5/(0.2+x)=5, then x= [#permalink]

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Bunuel wrote:
The Official Guide for GMAT® Review, 13th Edition - Quantitative Questions Project

If \(\frac{1.5}{0.2+x}=5\), then \(x=\)

(A) -3.7
(B) 0.1
(C) 0.3
(D) 0.5
(E) 2.8

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Question: 42
Page: 157
Difficulty: 550


GMAT Club is introducing a new project: The Official Guide for GMAT® Review, 13th Edition - Quantitative Questions Project

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Solving the equation we get,
.3 = .2 + x
x = .1

Answer B
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Re: If 1.5/(0.2+x)=5, then x= [#permalink]

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Bunuel wrote:
The Official Guide for GMAT® Review, 13th Edition - Quantitative Questions Project

If \(\frac{1.5}{0.2+x}=5\), then \(x=\)

(A) -3.7
(B) 0.1
(C) 0.3
(D) 0.5
(E) 2.8

Practice Questions
Question: 42
Page: 157
Difficulty: 550


GMAT Club is introducing a new project: The Official Guide for GMAT® Review, 13th Edition - Quantitative Questions Project

Each week we'll be posting several questions from The Official Guide for GMAT® Review, 13th Edition and then after couple of days we'll provide Official Answer (OA) to them along with a slution.

We'll be glad if you participate in development of this project:
1. Please provide your solutions to the questions;
2. Please vote for the best solutions by pressing Kudos button;
3. Please vote for the questions themselves by pressing Kudos button;
4. Please share your views on difficulty level of the questions, so that we have most precise evaluation.

Thank you!


When we divide a number \(D,\) the dividend, by another number \(d,\) the divisor, we obtain the quotient \(Q.\) Obviously, the dividend is the product of the quotient and the divisor: \(D=dQ.\)

In our case, \(1.5=5(0.2+x)\) or \(1.5=1+5x,\) from which \(5x=0.5\), and finally, \(x=0.5/5=0.1.\)

Answer B.
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Re: If 1.5/(0.2+x)=5, then x= [#permalink]

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New post 18 Sep 2012, 06:21
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Bunuel wrote:
If \(\frac{1.5}{0.2+x}=5\), then \(x=\)

(A) -3.7
(B) 0.1
(C) 0.3
(D) 0.5
(E) 2.8



Cross-multiplying both sides:
1.5 = 5(.2 + x)
=> 1.5 = 1 + 5x
=> 0.5 = 5x
=> x = .5/5
=> x = 0.1

B
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Re: If 1.5/(0.2+x)=5, then x= [#permalink]

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New post 10 Dec 2012, 04:09
\(\frac{1.5}{0.2+x}=5\)
\(1.5=5(0.2+x)\)
\(1.5=1 + 5x\)
\(1.5-1=5x\)
\(0.5=5x\)
\(x=0.1\)

Answer: B
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Re: If 1.5/(0.2+x)=5, then x= [#permalink]

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Re: If 1.5/(0.2+x)=5, then x= [#permalink]

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New post 30 Sep 2014, 21:11
\(\frac{1.5}{0.2 + x} = 5\)

\(\frac{1.5}{5} = 0.2+x\)

\(x = 0.3-0.2 = 0.1\)

Answer = B
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Re: If 1.5/(0.2+x)=5, then x= [#permalink]

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New post 10 May 2016, 18:00
Attached is a visual that should help.
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Re: If 1.5/(0.2+x)=5, then x= [#permalink]

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New post 11 May 2016, 07:54
Bunuel wrote:
If \(\frac{1.5}{0.2+x}=5\), then \(x=\)

(A) -3.7
(B) 0.1
(C) 0.3
(D) 0.5
(E) 2.8



Solution:

We are given the following equation:

1.5/(0.2+x) = 5

We begin by multiplying both sides of the equation by (0.2 + x), and we obtain:

1.5 = 5(0.2 + x)

1.5 = 1 + 5x

0.5 = 5x

0.5/5 = x

0.1 = x

The answer is B.
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Re: If 1.5/(0.2+x)=5, then x= [#permalink]

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New post 22 Mar 2017, 22:54
\(\frac { 1.5 }{ 0.2+x } =5,\quad x=?\\ 1.5=5(0.2+x)\\ 1.5=1+5x\\ 1.5-1=5x\\ 0.5=5x\\ x=\frac { 0.5 }{ 5 } \\ x=0.1\)
OA
[Reveal] Spoiler:
B

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Re: If 1.5/(0.2+x)=5, then x=   [#permalink] 22 Mar 2017, 22:54
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