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If x = 1- 3t and y = 2t - 1, then for what value of t does x

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If x = 1- 3t and y = 2t - 1, then for what value of t does x [#permalink] New post 24 Sep 2012, 03:56
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D
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Re: If x = 1- 3t and y = 2t - 1, then for what value of t does x [#permalink] New post 24 Sep 2012, 03:57
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Re: If x = 1- 3t and y = 2t - 1, then for what value of t does x [#permalink] New post 24 Sep 2012, 04:18
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1-3t = 2t-1
-> t= 2/5

Answer D
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Re: If x = 1- 3t and y = 2t - 1, then for what value of t does x [#permalink] New post 24 Sep 2012, 07:45
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Bunuel wrote:

If x = 1- 3t and y = 2t - 1, then for what value of t does x = y?

(A) 5/2
(B) 3/2
(C) 2/3
(D) 2/5
(E) 0



We are given expressing of x and y in terms of t.
Making both of these equal as x = y

1-3t=2t-1
=> 2 = 5t
=> t = 1/5

Hence D
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Re: If x = 1- 3t and y = 2t - 1, then for what value of t does x [#permalink] New post 28 Sep 2012, 03:31
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SOLUTION

If x = 1- 3t and y = 2t - 1, then for what value of t does x = y?

(A) 5/2
(B) 3/2
(C) 2/3
(D) 2/5
(E) 0

Since x = y, then 1- 3t= 2t - 1 --> 5t=2 --> t=\frac{2}{5}.

Answer: D.

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Re: If x = 1- 3t and y = 2t - 1, then for what value of t does x [#permalink] New post 10 Dec 2012, 03:19
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1- 3t = 2t - 1
2 = 5t
t = \frac{2}{5}

Answer: D
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If x = 1-3t and y = 2t-1, then for what value of t does x=y [#permalink] New post 13 Dec 2013, 00:28
A) 5/2
B) 3/2
C) 2/3
D) 2/5
E) 0
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Re: If x = 1-3t and y = 2t-1, then for what value of t does x=y [#permalink] New post 13 Dec 2013, 01:46
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Re: If x = 1- 3t and y = 2t - 1, then for what value of t does x [#permalink] New post 13 Dec 2013, 10:17
since you are asked to solve for the value at which x = y , set the equations equal to each other and solve.

Your answer should be 2/5, you can plug it back into the original equations to double check if you're not certain.
Re: If x = 1- 3t and y = 2t - 1, then for what value of t does x   [#permalink] 13 Dec 2013, 10:17
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