The value of y varies directly with x, and y = 1 when x = 3. Find y when x = 18. A. 9 B. 3 C. 6 D. 2
Question
Asked 9/16/2014 7:02:45 AM
Updated 9/16/2014 11:25:55 PM
This conversation has been flagged as incorrect.
Flagged by yeswey [9/16/2014 11:25:03 PM]
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Original conversation
User: The value of y varies directly with x, and y = 1 when x = 3. Find y when x = 18. A. 9 B. 3 C. 6 D. 2

Weegy: y varies directly with x, and k = 1/2, the equation is y = 1/2x
when y = 14,
1/2x = 14
x = 14(2) = 28
The value of x is 28 when y = 14

Question
Asked 9/16/2014 7:02:45 AM
Updated 9/16/2014 11:25:55 PM
This conversation has been flagged as incorrect.
Flagged by yeswey [9/16/2014 11:25:03 PM]
Rating
8
The value of y varies directly with x, and y = 1 when x = 3.
The equation is y = kx where k is the constant.
k = y/x = 1/3
The equation is y = 1/3x
When x = 18, y = (1/3)*18 = 18/3 = 6
Added 9/16/2014 11:25:55 PM
This answer has been confirmed as correct and helpful.
Confirmed by jeifunk [9/16/2014 11:39:54 PM]

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Questions asked by the same visitor
The value of y varies directly with x, and y = 3 when x = 6. Find y when x = 1. A. 0.5 B. 0.5 C. 2 D. 2
Weegy: y = 2.5 when x =4. User: The value of y varies directly with x, and y = 12 when x = 6. Find y when x = 4. A. 8 B. 8 C. 6 D. 6 Weegy: y varies directly with x, and k = 1/2, the equation is y = 1/2x when y = 14, 1/2x = 14 x = 14(2) = 28 The value of x is 28 when y = 14 (More)
Question
Updated 9/16/2014 11:09:37 PM
The value of y varies directly with x, the equation is y = kx.
y = 3 when x = 6.
3 = 6k, k = 3/6 = 1/2.
The equation is y = 1/2x
When x = 1, y = 1/2(1) = 1/2
Added 9/16/2014 11:06:47 PM
This answer has been confirmed as correct and helpful.
Confirmed by jeifunk [9/17/2014 2:25:07 AM]
The value of y varies directly with x, and y = 12 when x = 6.
The equation is y = kx where k is the contant.
And k = y/x = 12/6 = 2
The equation is y = 2x
when x = 4, y = 2(4) = 8
Added 9/16/2014 11:09:17 PM
This answer has been confirmed as correct and helpful.
Confirmed by jeifunk [9/17/2014 2:25:48 AM]
The value of y varies directly with x, and y = 4 when x = 10. Find y when x = 1. A. 2.5 B. 2.5 C. 0.4 D. 0.4
Weegy: y = 2.5 when x =4. User: The value of y varies directly with x, and y = 3 when x = 1. Find y when x = 5. A. 12 B. 15 C. 2 D. 15 Weegy: y varies directly with x, and k = 1/2, the equation is y = 1/2x when y = 14, 1/2x = 14 x = 14(2) = 28 The value of x is 28 when y = 14 (More)
Question
Updated 9/16/2014 11:16:41 PM
The value of y varies directly with x, and y = 4 when x = 10.
The equation is y = kx where k is the constant.
With given values we get k = y/x = 4/10 = 2/5
the equation is y = (2/5)x
when x = 1, y = (2/5) * 1 = 2/5 = 0.4
Added 9/16/2014 11:11:15 PM
This answer has been confirmed as correct and helpful.
Confirmed by jeifunk [9/16/2014 11:45:24 PM]
The value of y varies directly with x, and y = 3 when x = 1.
The equation is y = kx where k is the constant.
k = y/x = 3/1 = 3
The equation is y = 3x.
When x = 5, y = 3(5) = 15
Added 9/16/2014 11:16:41 PM
This answer has been confirmed as correct and helpful.
Confirmed by jeifunk [9/16/2014 11:45:54 PM]
The value of y varies directly with x, and y = 1 when x = 2. Find y when x = 4. A. 2 B. 4 C. 2 D. 8
Weegy: y varies directly with x, and k = 1/2, the equation is y = 1/2x when y = 14, 1/2x = 14 x = 14(2) = 28 The value of x is 28 when y = 14 (More)
Question
Updated 9/16/2014 11:04:32 PM
The value of y varies directly with x, the equation is y = kx where k is the constant. y = 1 when x = 2, substitute the value in the model: 2k = 1, k = 1/2.
The equation is y = 1/2x. When x = 4, y = (1/2)*4 = 2
Added 9/16/2014 11:04:32 PM
This answer has been confirmed as correct and helpful.
Confirmed by jeifunk [9/17/2014 2:15:02 AM]
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