question help: (8+12) / 4 7 5 - Help.com

(8+12) / 4 7 5

11

2. 8 + (12 / 4)

7 5
11

3. Evaluate if x = 4, y = 2, and z = 6:

2x + 2y

10 12
14

4. Evaluate if x = 4, y = 2, and z = 6:

1/2 * (x + z)

6 4
5

5. (36/9 + 4) / (13 - 11) 4 5
New Choice

6. 36/9 + [4 / (13 -11)] 4 5
6

7. Evaluate if a = 3, b = 5, c = 12:

(1/2) * c * (a + b)

48 96
14

8. Evaluate if a = 3, b = 5, c = 12:

(3b + a) / (c - 2a)

48 3
2

9. Using the given variable, write an expression to complete the statement. The difference between two numbers is 4. The smaller number is x. The larger number is ___. x + 4 x - 4
x

Part 2

TRUE/FALSE: Classify each statement as TRUE or FALSE (Each question is worth 1 point)
10. 12 * 15 = 15 * 12 True False

11. (15 - 12) - 3 = 15 - (12 - 3) True False

Part 3

Multiple Choice: Solve each equation of the domain (1, 2, 3, 4, 5, 6, 7) (Each question is worth 1 point)
12. x + 7 = 12 4 5
(5)

13. 8x = 48 (7) (6)
6

14. 3x - 4 = 17 (8) (7)
(6)

15. 3x + 2 = x + 6

(2) 2
(4)

Part 4

Multiple Choice: Match the expression with the corresponding word phrase. (Each question is worth 1 point)
16. 3(x - 2)

Three less than two times a number Three times the difference of a number and 2
Three decreased by two times a number Twice the sum of a number and 3

17. 3 - 2x

Three less than two times a number Three times the difference of a number and 2
Three decreased by two times a number Twice the sum of a number and 3

18. 2x - 3 Three less than two times a number Three times the difference of a number and 2
Three decreased by two times a number Twice the sum of a number and 3

19. 2(x + 3) Three less than two times a number Three times the difference of a number and 2
Three decreased by two times a number Twice the sum of a number and 3

Part 5

Multiple Choice: Match the word phrase with the corresponding equation. (Each question is worth 1 point)
20. The difference between a number and three is twenty-one.

3 = 2x + 4 3(x + 2) = 12
x + 3x = 12 x - 3 = 21

21. Three is four more than twice a number. 3 = 2x + 4 3(x + 2) = 12
x + 3x = 12 x - 3 = 21

22. The sum of a number and three times the number is twelve. 3 = 2x + 4 3(x + 2) = 12
x + 3x = 12 x - 3 = 21

23. The product of three and two more than a number is twelve

3 = 2x + 4 3(x + 2) = 12
x + 3x = 12 x - 3 = 21

Part 6

Multiple Choice: Choose an equation that represents the given information. (Each question is worth 1 point)
24. The perimeter of an equilateral triangle is 36 cm. Find the length of a side.

3s = 36 36 = s + 3

s3 = 36

25. Seven years from now Alex will be 23 years old. Find an equation for Alex’s age now.

a - 7 = 23 a + 7 = 23
7a = 23

please post all answers

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