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12. Simplify and solve this equation: 4m + 9 + 5m – 12 = 42. A. m = 4 B. m = 5 C. m = -4 D. m = –5
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Asked 5/19/2014 1:04:41 AM
Updated 5/19/2014 5:11:54 AM
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This answer has been confirmed as correct and helpful.
Edited by andrewpallarca [5/19/2014 5:11:04 AM], Confirmed by andrewpallarca [5/19/2014 5:11:54 AM]
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User: 12. Simplify and solve this equation: 4m + 9 + 5m – 12 = 42. A. m = 4 B. m = 5 C. m = -4 D. m = –5

Weegy: 4m + 9 + 5m – 12 = 42, 9m - 3 = 42, 9m = 45, m = 45/9, m = 5
debnjerry|Points 59945|

User: 13. If four times a number plus 3 is 11, what is the number? A. 2 B. 16 C. 4 D. 5

Question
Asked 5/19/2014 1:04:41 AM
Updated 5/19/2014 5:11:54 AM
1 Answer/Comment
This answer has been confirmed as correct and helpful.
Edited by andrewpallarca [5/19/2014 5:11:04 AM], Confirmed by andrewpallarca [5/19/2014 5:11:54 AM]
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If four times a number plus 3 is 11, the number is 2.

4n + 3 = 11;
4n = 11 - 3;
4n = 8;
n = 8/4;
n = 2
Added 5/19/2014 5:11:53 AM
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6. Simplify the following expression: 35 + (–13) + (+8) – (–6). A. 50 B. 36 C. 44 D. 24 User: 7. Solve this inequality: 8z + 3 – 2z
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Question
Not Answered
Updated 5/19/2014 6:31:18 PM
1 Answer/Comment
The expression for "3 times a number minus 2 equals 13" is: 3n - 2 = 13 where n is the number. 3n = 15, so n = 5.
3 times a number minus 2 equals 13, the number is 5.
Added 5/19/2014 6:31:18 PM
This answer has been confirmed as correct and helpful.
Confirmed by andrewpallarca [5/20/2014 10:13:54 AM]
13. A school custodian waxed a gymnasium floor that measured 20 feet by 20 feet. How many square feet did she have to wax? A. 80 square feet B. 800 square feet C. 400 square feet D. 40 square feet
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Question
Updated 1/25/2015 4:31:08 AM
1 Answer/Comment
38 < 4x + 3 + 7 – 3x
38 < x + 10
38 - 10 < x
28 < x
x > 28
Added 1/25/2015 4:31:03 AM
This answer has been confirmed as correct and helpful.
Confirmed by yumdrea [1/25/2015 9:55:39 AM]
1. Which of the following groups of numbers are all prime numbers? A. 2, 5, 15, 19 B. 7, 17, 29, 49 C. 2, 3, 5, 9 D. 3, 11, 23, 31
Weegy: 3,11,23,31 is the group of numbers that have all prime numbers. (More)
Question
Expert Answered
Updated 5/19/2014 4:13:42 AM
0 Answers/Comments
11. If 3 times a number minus 2 equals 13, what is the number? A. 2 B. –6 C. 4 D. 5
Question
Not Answered
Updated 5/19/2014 8:29:02 AM
1 Answer/Comment
If 3 times a number minus 2 equals 13, the number is 5.
3n-2=13
3n=13+2
3n=15
n=15/3
n=5
Added 5/19/2014 8:29:02 AM
This answer has been confirmed as correct and helpful.
11. Which of the following best describes a plane? A. The surface of a flat table B. A curve in a road C. The point of intersection of two walls D. The edge of a desk
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Not Answered
Updated 5/19/2014 7:48:04 AM
1 Answer/Comment
The surface of a flat table best describes a plane.
Added 5/19/2014 7:48:04 AM
This answer has been confirmed as correct and helpful.
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