Which is a pure substance?
A. a mixture
B. a solution
C. a compound

Compound is a pure substance.

Question

Asked 4/28/2015 7:57:27 AM

Updated 4/28/2015 8:15:24 AM

1 Answer/Comment

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8

Compound is a pure substance.

Added 4/28/2015 8:15:24 AM

This answer has been confirmed as correct and helpful.

Solve using substitution.
y = -3x + 9
y = -2x + 3
(, ) **Weegy:** -2x+3y=6 -3x+y=5 From 2nd equation y = 3x + 5 Using this in 1st equation -2x + 3(3x + 5) = 6 -2x + 9x + 15 =6 7x = -9 x = -9/7 y = -27/7 + 5 = 8/7 (More)

Question

Updated 4/23/2015 10:07:17 AM

1 Answer/Comment

y = -3x + 9

y = -2x + 3

substitute y in the first equation the result is:

-2x + 3 = -3x + 9

-2x + 3x = 9 - 3

x = 6

y = -3(6) + 9 = -18 + 9 = -9

the solution for the system y = -3x + 9 y = -2x + 3 is (6, -9)

y = -2x + 3

substitute y in the first equation the result is:

-2x + 3 = -3x + 9

-2x + 3x = 9 - 3

x = 6

y = -3(6) + 9 = -18 + 9 = -9

the solution for the system y = -3x + 9 y = -2x + 3 is (6, -9)

Added 4/23/2015 10:07:17 AM

This answer has been confirmed as correct and helpful.

Confirmed by Andrew. [4/24/2015 4:31:59 AM]

Which is an example of a mixture?
A. water
B. trail mix
C. hydrogen
D. carbon dioxide

Question

Not Answered

Updated 4/28/2015 8:23:02 AM

2 Answers/Comments

TRAIL MIX is an example of a mixture.

Added 4/28/2015 8:22:40 AM

This answer has been confirmed as correct and helpful.

Confirmed by yumdrea [4/29/2015 3:00:02 AM]

Which is an example of a solution?
A. sand
B. salad
C. carbon
D. seawater

Question|Asked by WeegyUserForEver11

Not Answered

Updated 4/28/2015 8:29:45 AM

1 Answer/Comment

Seawater is an example of a solution.

Added 4/28/2015 8:29:45 AM

This answer has been confirmed as correct and helpful.

Which is an example of a mixture?
A. water
B. trail mix
C. hydrogen
D. carbon dioxide
**Weegy:** Carbon dioxide is an example of a mixture. (More)

Question|Asked by WeegyUserForEver11

Expert Answered

Updated 4/28/2015 2:57:34 PM

0 Answers/Comments

Which is an example of a pure substance?
A. coffee
B. helium
C. vinegar
D. trail mix
**Weegy:** Helium is an example of a pure substance. (More)

Question|Asked by WeegyUserForEver11

Expert Answered

Updated 4/29/2015 10:03:22 AM

0 Answers/Comments

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