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Kendra works 5 days per week and earns d dollars per day. Which of the

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Kendra works 5 days per week and earns d dollars per day. Which of the [#permalink]

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New post 11 Oct 2017, 22:36
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Kendra works 5 days per week and earns d dollars per day. Which of the following represents the amount Kendra earns at this job in w weeks?

(A) dw/5
(B) 5w/d
(C) 5d/w
(D) w/(5d)
(E) 5dw
[Reveal] Spoiler: OA

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Re: Kendra works 5 days per week and earns d dollars per day. Which of the [#permalink]

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New post 11 Oct 2017, 23:58
Kendra is earing 5 days a week her 1 week earning will be 5d.
To find out earing for w weeks we have to multiply her 1 week earning with number of weeks she will be earning. That will be 5dxw
5dw is answer. Correct me if i am wrong


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Kendra works 5 days per week and earns d dollars per day. Which of the [#permalink]

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New post 12 Oct 2017, 06:53
Bunuel wrote:
Kendra works 5 days per week and earns d dollars per day. Which of the following represents the amount Kendra earns at this job in w weeks?

(A) dw/5
(B) 5w/d
(C) 5d/w
(D) w/(5d)
(E) 5dw

Algebraically

In \(5\) days she makes:

\((\frac{d}{1day}) * (5 days) = 5d\)

\(5\) days = \(1w\), so in \(1w\) she makes \(5d\)

If \(5d\) in \(1w\), then in \(w\) weeks she makes:

\(5d * w = 5dw\)

Answer E

Assign values

Let \(d\) dollars per day = 10
Let \(w\) weeks = 2
She works 5 days per week

What is the amount she earns in \(w\) weeks?

Each day she makes $10
In 5 days she earns (5 * $10) = $50
5 days is one work week
She earns $50 in one work week

In (2 weeks) * ($50/week) she makes $100

days per week = \(5, d = $10, w = 2\)

With those values, we need the answer that = 100 dollars

Eliminate Answers B and D. \(w\) is 2. The numerators are tiny; those fractions are much less than $100

(A) dw/5: ($10)(2)/5 = $4. NOT A MATCH

(C) 5d/w: (5)($10)/2 = $25. NOT A MATCH

(E) 5dw: (5)($10)(2) = $100. MATCH

Answer E

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Re: Kendra works 5 days per week and earns d dollars per day. Which of the [#permalink]

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New post 16 Oct 2017, 15:52
Bunuel wrote:
Kendra works 5 days per week and earns d dollars per day. Which of the following represents the amount Kendra earns at this job in w weeks?

(A) dw/5
(B) 5w/d
(C) 5d/w
(D) w/(5d)
(E) 5dw


In one week, Kendra earns 5d dollars. In w weeks, therefore, she earns 5dw dollars.

Answer: E
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Kudos [?]: 981 [0], given: 5

Re: Kendra works 5 days per week and earns d dollars per day. Which of the   [#permalink] 16 Oct 2017, 15:52
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