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Re: 4(1/2x+2y) or ( 2x+8y) [#permalink]
1
Ignore this!

Originally posted by mysterymanrog on 17 Jun 2023, 02:16.
Last edited by mysterymanrog on 18 Jun 2023, 10:40, edited 1 time in total.
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Re: 4(1/2x+2y) or ( 2x+8y) [#permalink]
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mysterymanrog wrote:
QA:
Lets start by distributing the 4:
\(4(0.5x+2y)\)
\(2x+8y\)

As QA has the same formula as QB, these must be the same quantity.
C


1/2x is not equal to 0.5x
(1/2)*x = 0.5x

Posted from my mobile device
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Re: 4(1/2x+2y) or ( 2x+8y) [#permalink]
1
Nayem117 wrote:
mysterymanrog wrote:
QA:
Lets start by distributing the 4:
\(4(0.5x+2y)\)
\(2x+8y\)

As QA has the same formula as QB, these must be the same quantity.
C


1/2x is not equal to 0.5x
(1/2)*x = 0.5x

Posted from my mobile device


You are correct! I will fix that
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Re: 4(1/2x+2y) or ( 2x+8y) [#permalink]
2
pikachuLemon wrote:
For Quantity A, we'd get
4(1/2x + 2y)
= 2/x + 8y

and Quantity B,
= 2x+8y

Now ignoring 8y since it would be the same value on both ends and

plugging x = 1,
we get A --> 2/x = 2 and B --> 2x = 2*1 = 2 --> so here quantities are equal

if x=2,
we get A --> 2/x = 2/2 = 1 and B --> 2x = 2*2 = 4 --> here B is greater

So, it should be D -The relationship cannot be determined from the information given.


This solution is perfect.
The correct answer is D.

I will change it now.

Cheers,
Brent
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Re: 4(1/2x+2y) or ( 2x+8y) [#permalink]
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Re: 4(1/2x+2y) or ( 2x+8y) [#permalink]
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