Question and answer
What is the solution of the equation x 8 = 17? A. -9 B. 9 C. 25 D. 27
If the symbol between x and 8 is positive, then: x + 8 = 17; x = 17 - 8; x = 9 *************** If the symbol between x and 8 is negative, then: x - 8 = 17; x = 17 + 8; x = 25
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Asked 5/1/2014 12:47:51 PM
Updated 5/1/2014 5:01:18 PM
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If the symbol between x and 8 is positive, then:
x + 8 = 17;
x = 17 - 8;
x = 9

***************
If the symbol between x and 8 is negative, then:
x - 8 = 17;
x = 17 + 8;
x = 25
Added 5/1/2014 5:01:18 PM
This answer has been confirmed as correct and helpful.
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Which is an indication that a chemical change to a substance has occurred?
Question
Updated 12/26/2017 1:02:02 AM
1 Answer/Comment
New substances are formed and energy is used or given off are both indications that a chemical change to a substance has occurred.
Added 12/26/2017 1:02:02 AM
This answer has been confirmed as correct and helpful.
Confirmed by Masamune [12/26/2017 1:06:43 PM]
Which of the following describes a physical change? A. Formation of a new substance caused by combining substances B. Water changing from liquid to gas through evaporation or boiling C. Formation of a new substance caused by application of heat
Question
Not Answered
Updated 4/23/2016 5:04:28 PM
1 Answer/Comment
The following describes a physical change:
Water changing from liquid to gas through evaporation or boiling.
Added 4/23/2016 5:04:28 PM
This answer has been confirmed as correct and helpful.
What is 1/3x 5 = 12? -3x = 4 - 5; -3x = -1; x = 1/3
Weegy: 1/3x+5=12 subtract 5 from each side so you get 1/3x=7; now multiply by 3/1 to each side (3/1)(1/3x)=7(3/1) x=21 A=2r+8 subtract 8 from each side so you get a-8=2r; now divide by 2 to isolate r so you get a/2-4=r. [ ] (More)
Question
Expert Answered
Updated 5/3/2014 5:06:47 PM
1 Answer/Comment
1/3x+5=12;

x/3 + 5 = 12;

x/3 = 12 - 5;

x/3 = 7;

x = 7 * 3;

x = 21
Added 5/3/2014 5:06:47 PM
This answer has been confirmed as correct and helpful.
If the volume of an object increases but the mass stays the same, which will happen to the density? A. It will increase. B. It will decrease. C. It will stay the same.
Question
Not Answered
Updated 4/25/2014 11:29:20 AM
1 Answer/Comment
If the volume of an object increases but the mass stays the same, the density will decrease.

Added 4/25/2014 11:29:20 AM
This answer has been confirmed as correct and helpful.
Confirmed by jeifunk [4/25/2014 11:31:10 AM]
Which is an indication that a chemical change to a substance has occurred? A. It changes shape. B. New substances are formed. C. Energy is used or given off. D. both B and C
Question
Not Answered
Updated 4/25/2014 2:38:28 PM
1 Answer/Comment
Both B and C is the answer.
New substances are formed and energy is used or given off are both indications that a chemical change to a substance has occurred.
Added 4/25/2014 2:38:28 PM
This answer has been confirmed as correct and helpful.
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