What is due in Pre-Alg on 3/21

March 9, 2014 /

Hi,
The grades from the test on Ch. 2 are 2 As, 4Bs, 1 D and 2 Fs.
I would like to see these grades higher! I am going to assign a few more problems from ch. 2. Algebra builds on concepts learned and we don’t want a shaky foundation, so be sure that you check your answers to these as you are working them, and LET ME KNOW if you are getting several wrong. I will be glad to help you over the phone or at an outside of class tutoring session. In class, you seem to be getting the concepts, but the test showed that some of you are not mastering the concepts. You should not take a test unless you have studied properly for it by working LOTS of problems correctly.
The answers to the even problems are not in the back of the book, so I will list them at the bottom of this email.
Monday p. 741, EVEN numbered problems from section 2.2
p. 742, EVEN numbered problems from section 2.3
Tuesday p. 742, EVEN numbered problems from section 2.4
p. 743 EVEN numbered problems 34-42 from section 2.5
Wednesday p.743 EVEN numbers 8-36 from section 2.6
p. 744 EVEN numbers 2-36 from section 2.7
Thursday P. 132, 133 7-51 odds

CHECK your answers as you work them to be sure that you are getting these correct. You may need to go back and read over ch. 2 and look through all the examples to help you with the problems from p. 741 – 744.

Please call me if you have questions,
Mrs. A
ANSWERS
p. 741 section 2.2
2. -6
4. 94
6. -18
8. -6
10. 21
12.-19
14. -112
16. 0
18. -72
20. -2
22. 12
24. -98
26. 15
28. 25
30. 17
32. 40

p.742 section 2.3
2. 15
4. -14
6. 5
8. 1
10. 0
12. -77
14. -3
16. -10
18. -13
20. -100
22. -72
24. -61
26. -7
28. -33
30. 49
32. -38
34. 7
36. 84
38. 20
40. 31
42. 27
44. 225

section 2.4
2. -30
4.-27
6. -42
8. 5
10. 10
12. -12
14. -10
16. 360
18. -3
20. 12
22. 10
24. -12
26. 6

p. 743 section 2.5
34. Associative (nothing has been moved around, the numbers are just associated differently)
36. distributive (the 8 was distributed)
38. commutative (the numbers were moved)
40. distributive
42. Associative

section 2.6
8. 7x-10
10. 3y+5
12.6w-8
14.5r
16. 5c-2
18. 13z-5
20/ 11a+3
22. 4.1×5.2y
24.7a-4
26. -11w+13
28. 18q-6m
30.-4v-9t
32. 1d-8
34.5x+3y-5z-5
36.-6t+1r-3

p. 744
2. -35a
4. -48ysquared
6. -12b-20
8. 12.5c
10. -16x
12. -22b+6
14. 2f
16. -5r-30
18.-19y59z
20. -6x39y
22.-21y+9x
24. -23q+22p
26. -2z-7w
28. 24ac+4c
30. 2(5b+7)= 10b+14
32. 28ax-28a
34. 160qx-110q

I don’t have a teacher book for these, so there could be an error or two 🙂
Let me know if you find errors with these answers ASAP