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Modern humans are known by their Latin name _____.
A. Homo habilis
B. Homo erectus
C. Homo sapiens
D. paranthropus boisei
**Weegy:** Modern humans are known by their Latin name as Homo sapiens. (More)

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Updated 12/27/2014 5:27:39 AM

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All of the following are examples of history's sister disciplines EXCEPT which one?
A.
anthropology
B.
political science
C.
geography
D.
chemistry
**Weegy:** All of the following are examples of history's sister disciplines EXCEPT chemistry. (More)

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Updated 6/24/2014 7:55:54 AM

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Most scientists and anthropologists agree that early humans first emerged in

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Updated 32 days ago|3/23/2017 3:15:05 AM

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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
User: 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:** If y = kx, then when y = 8, x = 1. **User:** 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
**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 = 2.5 when x =4. **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 = 2.5 when x =4. **User:** Which equation below is a direct variation?
A. 0.05x = y
B. x + 2 = y
C.
D. y = 2x + 6
**Weegy:** slope is 2
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Expert Answered

Updated 11/22/2014 1:57:17 AM

4 Answers/Comments

The value of y varies directly with x, and y = 1 when x = 2. y = 2 when x = 4.

Let y = kx , 1 = 2k, k = 1/2 , so y = 1/2x ,

When x = 4 , y = 1/2*4 = 2 .

Let y = kx , 1 = 2k, k = 1/2 , so y = 1/2x ,

When x = 4 , y = 1/2*4 = 2 .

Added 11/22/2014 1:52:20 AM

The value of y varies directly with x, and y = 4 when x = 10. y = 0.4 when x = 1.

Let y = kx ,

4 = 10k

k = 4/10 = 2/5

so y = 2/5x

when x = 1

y = 2/5*1

y = 2/5

y = 0.4

Let y = kx ,

4 = 10k

k = 4/10 = 2/5

so y = 2/5x

when x = 1

y = 2/5*1

y = 2/5

y = 0.4

Added 11/22/2014 1:54:31 AM

The value of y varies directly with x, and y = 1 when x = 3. y = 6 when x = 18.

Let y = kx

1 = 3k

k = 1/3

so y = 1/3x

when x = 18

y = 1/3*18

y = 6 .

Let y = kx

1 = 3k

k = 1/3

so y = 1/3x

when x = 18

y = 1/3*18

y = 6 .

Added 11/22/2014 1:56:34 AM

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