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1,200x + 6,000 = 13,200 12y + 60 = 132

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1,200x + 6,000 = 13,200 12y + 60 = 132 [#permalink] New post 20 May 2018, 16:46
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Question Stats:

94% (00:47) correct 5% (03:22) wrong based on 19 sessions
1,200x + 6,000 = 13,200
12y + 60 = 132

Quantity A
Quantity B
x
y


A)The quantity in Column A is greater.
B)The quantity in Column B is greater.
C)The two quantities are equal.
D)The relationship cannot be determined from the information given.
[Reveal] Spoiler: OA

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Re: 1,200x + 6,000 = 13,200 12y + 60 = 132 [#permalink] New post 23 May 2018, 09:52
Expert's post
sandy wrote:
1,200x + 6,000 = 13,200
12y + 60 = 132

Quantity A
Quantity B
x
y


A)The quantity in Column A is greater.
B)The quantity in Column B is greater.
C)The two quantities are equal.
D)The relationship cannot be determined from the information given.


Great question!!

Given:
1,200x + 6,000 = 13,200
12y + 60 = 132

Notice that, if we take the top equation and divide both sides by 100, we get the EQUIVALENT equation: 12x + 60 = 132
So, our two equations are now:
12x + 60 = 132
12y + 60 = 132

Since both equations are set equal to 132, we can conclude that: 12x + 60 = 12y + 60
Subtract 60 from both sides to get: 12x = 12y
Divide both sides by 12 to get: x = y

Answer: C

Cheers,
Brent
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Brent Hanneson – Creator of greenlighttestprep.com
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Re: 1,200x + 6,000 = 13,200 12y + 60 = 132 [#permalink] New post 26 May 2018, 13:00
Good one
Re: 1,200x + 6,000 = 13,200 12y + 60 = 132   [#permalink] 26 May 2018, 13:00
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1,200x + 6,000 = 13,200 12y + 60 = 132

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