Write a direct variation equation that relates x and y. Assume that y varies directly as x. Then solve. If y = 36 when x = 9, find x when y = 52. a. y = –4x; –13 c. y = 4x; 10.4 b. y = 3x; 13 d. y = 4x; 13
Write a direct variation equation that relates x and y. Assume that y varies directly as x. Then solve. If y = 36 when x = 9, x = 13 when y = 52. Let y = kx; 36 = 9k; k = 36/9; k = 4; y = 4x; when y = 52; 52 = 4x; x = 52/4; x = 13
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Asked 3/24/2016 9:49:27 PM
Updated 3/27/2016 9:39:38 PM
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Write a direct variation equation that relates x and y. Assume that y varies directly as x. Then solve. If y = 36 when x = 9, x = 13 when y = 52.
Let y = kx;
36 = 9k;
k = 36/9;
k = 4;
y = 4x;
when y = 52;
52 = 4x;
x = 52/4;
x = 13
Added 3/27/2016 9:39:38 PM
This answer has been confirmed as correct and helpful.
Confirmed by Andrew. [3/27/2016 11:35:34 PM]

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Questions asked by the same visitor
What is the value of 3x - 4, if 2x +1 = 5? a. 2 c. 6 b. 4 d. 8
Weegy: 2x^2 - 3x = 5 2x^2 - 3x - 5 = 0; x(2x - 3) = 5 (x + 1)(2x - 5) = 0; x + 1 = 0; x = -1; 2x - 5 = 0; 2x = 5; x = 5/2 x = {-1, 5/2) (More)
Question
Updated 3/24/2016 11:44:40 PM
2 is the value of 3x - 4, if 2x +1 = 5.
2x + 1 = 5;
2x = 5 - 1;
2x = 4;
x = 4/2;
x = 2;
3x - 4;
= 3*2 - 4;
= 6 - 4;
= 2
Added 3/24/2016 11:44:40 PM
This answer has been confirmed as correct and helpful.
Confirmed by Andrew. [3/24/2016 11:47:31 PM], Rated good by Andrew.
Find the solution set for the equation, given the replacement set. y = –5x + 8; {(6, –11), (4, –12), (5, –9), (3, –14)} a. {(6, –11)} c. {(4, –12)} b. {(3, –14)} d. {(5, –9)}
Weegy: -2 is the y-intercept for the equation: y = 5x ? 2 (More)
Question
Updated 3/27/2016 9:37:18 PM
The solution set for the equation, given the replacement set y = –5x + 8 is {(4, –12)}.
when x = 4;
y = -5*4 + 8;
y = -20 + 8;
y = -12
Added 3/27/2016 9:37:18 PM
This answer has been confirmed as correct and helpful.
Confirmed by Andrew. [3/27/2016 11:36:21 PM]
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