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

The surface of a flat table best describes a plane.

Question

Asked 5/19/2014 1:31:35 AM

Updated 5/19/2014 7:48:04 AM

1 Answer/Comment

Rating

3

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.

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 **Weegy:** The answer is D. z **User:**
8. Simplify and solve this equation for q: 3q + 5 + 2q – 5 = 65.
A. q = 15
B. q = 23
C. q = 11
D. q = 13
**Weegy:** Simplify and solve this equation for q: 3q + 5 + 2q ? 5 = 65.
Answer D. q = 13 **User:**
9. Solve this equation: 4y + 228 = 352.
A. y = 31
B. y = – 31
C. y = 145
D. y = 3
**Weegy:** 4y + 228 = 352,
4y = 352 - 228,
4y = 124,
y = 31. The answer is A. y = 31 **User:**
10. Given the formula K = LMN, what is the formula for M?
A. M = LNK
B. M = LN/K
C. M = K/LN
D. M = KL/N
**Weegy:** A. M = K/LN **User:**
11. If 3 times a number minus 2 equals 13, what is the number?
A. 2
B. –6
C. 4
D. 5
(More)

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.

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
**Weegy:** B. 400 square feet **User:**
14. Which one of the following groups of numbers includes all prime numbers?
A. 1, 3, 11, 23
B. 3, 11, 23, 31
C. 2, 3, 5, 15
D. 7, 17, 63, 67
**Weegy:** A. 3, 11, 23, 31 **User:**
15. Which of the following is a composite number?
A. 91
B. 139
C. 13
D. 29
**Weegy:** 91 is a composite number. **User:**
16. Helen had to read 148 pages of her science textbook in the 4 days remaining before an exam. If she reads the same number of pages each day, how many pages will she need to read each day?
A. 40
B. 38
C. 37
D. 36
**Weegy:** Helen had to read 148 pages of her science textbook in the 4 days remaining before an exam. If she reads the same number of pages each day, she will need to read (148/4) 37 pages each day. **User:**
17. What is the value of 12.5 × 107?
A. 1.2500000
B. 1,250,000
C. 12.5000000
D. 125,000,000
**Weegy:** 12.5 ? 10^7 is 125,000,000
**User:**
18. What is the prime factorization of 1,260?
A. 2 × 2 × 3 × 3 × 5 × 7
B. 2 × 3 × 5 × 7
C. 2 × 3 × 5 × 6 × 7
D. 4 × 5 × 7 × 9
**Weegy:** The prime factorization of 1,260 is 2 x 2 x 3 x 3 x 5 x 7. **User:**
19. What is the cube of 6?
A. 36
B. 42
C. 18
D. 216
**Weegy:** The cube of 6 is 216. 6 * 6 * 6 36 * 6 = 216 **User:** 20. What is the value of 324?
A. 18
B. 128
C. 1,048,576
D. 648
**Weegy:** D. 1,048,576 **User:**
9. Will bought 3 college textbooks. One cost $32, one cost $45, and one cost $39. What is the average price of his books? Choose the statement that correctly calculates the average.
A. $32 + $45 + $39 ÷ 3
B. $32 ÷ 3 + $45 ÷ 3 + $39
C. 3 × $32 + $45 + $39
D. ($32 + $45 + $39) ÷ 3
**Weegy:** The answer is: B. ($32 + $45 + $39) ? 3. The average price is: $38.67. [smile] **User:**
1. Solve this equation: 80 = 3y + 2y + 4 + 1.
A. y = –15
B. y = 75
C. y = 1/5
D. y = 15
**Weegy:** 80 = 3y + 2y + 4 + 1, 80 = 5y + 5, 75 = 5y, divide both sides by 5 to get y = 15. The answer is A. y = 15. **User:**
2. ... (More)

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

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

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.

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

Question

Not Answered

Updated 5/19/2014 5:11:54 AM

1 Answer/Comment

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

4n + 3 = 11;

4n = 11 - 3;

4n = 8;

n = 8/4;

n = 2

Added 5/19/2014 5:11:53 AM

This answer has been confirmed as correct and helpful.

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