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If a = -12/5, then 5x + 2y = 6 and 3x - ay = 4 are parallel. True False
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Asked 11/17/2014 7:01:11 PM
Updated 11/18/2014 12:23:29 AM
2 Answers/Comments
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User: If a = -12/5, then 5x + 2y = 6 and 3x - ay = 4 are parallel. True False

Weegy: the answer is B.true
danimai|Points 1504|

User: Input the equation of the given line in standard form. The line with m = -3/4 and b = -2.

User: The y-intercept of the line whose equation is 3x + 2y = 7 -3/2 7/3 7/2

Weegy: The y-intercept of the line whose equation is 3x + 2y = 7 is 7/2.

User: Ben has \$3.40 consisting of quarters and dimes. How many coins of each kind does he have if he has 22 coins? Which of the following system of equations represents the word problem if d is the number of dimes and q is quarters? d + q = 22 and 10d + 25q = 340 10d + 25q = 22 and d + q = 340 dq = 22 and d + q = 340

Weegy: d + q = 22 and 10d + 25q = 340- is the system of equations that represents the word problem if d is the number of dimes and q is quarters.
emdjay23|Points 17321|

User: 3x + 2y = 5 5x + 2y = 7 Based on the given system of equations, which of the following is not true? 2x = 2 8x = 12 4y = 4

Weegy: 3x + 2y = 5 5x + 2y = 7 Based on the given system of equations, which of the following is not true? 2x = 2 8x = 12 4y = 4. Answer is: 8x = 12
bel007|Points 135|

User: 2x - 6y = 5 x + y = 2 Solve the system of equations. (17, -15) (17/8, -1/8) no solution

Question
Asked 11/17/2014 7:01:11 PM
Updated 11/18/2014 12:23:29 AM
2 Answers/Comments
This conversation has been flagged as incorrect.
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5
If a = -12/5, then 5x + 2y = 6 and 3x - ay = 4 are parallel is false .
5x + 2y = 6
y =(6 - 5x)/2
y = -5/2 + 3
The slope of 5x + 2y = 6 is -5/2 ,
3x - ay = 4
3x - (-12/5)y = 4
3x + 12/5y = 4
15x + 12y = 20
y = (-15x + 20)/12
y = -5/4x + 5/3
The slope of 3x - ay = 4 is -5/4,
-5/2 is not equal to -5/4 ,so they are not parallel .
Added 11/18/2014 12:12:06 AM
5
The solution for 2x - 6y = 5 , x + y = 2 is (17/8, -1/8).
From x + y = 2 ,we get x = 2 - y , put x = 2 - y in equation 2 :
2x - 6y = 5
2(2 - y) - 6y = 5
4 - 2y - 6y = 5
-8y = 1
y = -1/8

x = 2 - (-1/8)
x = 2 + 1/8
x = 17/8
Added 11/18/2014 12:23:25 AM
This answer has been confirmed as correct and helpful.
Confirmed by sujaysen [11/18/2014 8:27:09 AM]
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Question
Updated 11/24/2014 12:49:26 AM
1 Answer/Comment
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Added 11/24/2014 12:49:26 AM
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