Question

can u guys look at this and make sure everything is correct if not type in which problem and y you think it is wrong :) the doc is below..

I always give metals

Answer 1

if you can not view them here are them :


1. Evaluate x+y・z if x = 2, y = 4 and z = -2

-6

2. Evaluate if r=6 and t=2
14/5 or 2.8

3. Simplify 2(6+5)

22

4. Write an expression for the phrase:
three less than twice a number

2n-3

5. Simplify: 5 – 3|1 – 4|

-4

7. Use the distributive property to simplify the expression: –8 + 4(3x – 2)+ 4

-12 + 12x

8. If a=9.2, what is the value of –a?

-9.2

9. Simplify 20 ÷(1/4)

5/1 or 5

10. Simplify –10 + (–3x) – 5 + 2x

-15-x
11. Evaluate if c = 6, and d= –5
12/-5 or -2.4

12. Simplify 12 – (–1) + 3

16

13. Evaluate: x – |y| if x = 1.6 and y = –2

-0.4

14. Solve: 13 – z = 7

z=6

16. Solve: 6x+4=22

x=3

17. Solve: x + 5 – 8x = 26

x=-3

18. Solve: (-1/4)h = 15

4/15 or 3.75

19. Solve: -3f = 24

f=-8

20. Write the inequality that can be used to represent a number v that is greater than -3 and less than or equal to 6.

−3<v≤6

21. Solve: 4 – 3c < 19

c<19

22. Solve: 17 = 6t – 7

t=4

Answer 2

Question 9:\[\frac{20}{\frac{1}{4}}=4\cdot20=80\]

Answer 3

thanks ! across!:)

Answer 4

Question 21:\[4-3c<19,\]\[4-19<3c,\]\[-15<3c,\]\[-5<c.\]

Answer 5

Everything else is correct.

Answer 6

okay :D

Answer 7

Answer to Q18 is wrong

Answer 8

how should i change it?

Answer 9

multiply both sides by -4.