Chapter 3
Selected Practice Worksheet Answers
| Worksheet |
Problem # |
Answer |
3.1&2 |
1a |
x = 9 |
| 1i |
p = -7.7 |
| 1q |
a = -2 |
| 2 |
x = 7 in |
| 3a |
n = 7 |
| 3g |
p = 30 |
| 4a |
y = 2x + 5 |
| 5d |
x = -4 |
| 7 |
19.95 + 10x = 139.95 |
| 3.3
|
1a |
4 |
| 1g |
2 |
| 1m |
-2 |
| 3 |
5 in |
| 6a |
y = 4(x – 45) + 3x |
| 3.4 |
1a |
subtr 4x from each side: x + 11 = 18
subtr 11 from each side: x = 7 |
| 2d |
-4 |
| 2j |
-1 |
| 3 |
5 weeks |
| 5a |
3 years |
| 3.5 |
1a |
no, 8 to 17 |
| 2a |
7 |
| 2g |
1.63 |
| 3a |
 , x = 20
|
| 3d |
 , x = 220
|
| 6 |
2160 pieces of mail |
| 3.6&7 |
1a |
55n & 11(40) |
| 2a |
5 |
| 2g |
12.375 |
| 3a |
209 ft |
| 4a |
20% |
| 4d |
117 |
| 5a |
25% |
| 5d |
306 |
| 6a |
15% |
| 7b |
12 parts |
| 10 |
51,000,000 mi2 |
| 12a |
10 students |
| 3.8 |
1a |
 |
| 1g |
 |
| 2a |
R2= R – R1 |
| 3b |
 |
| 5b |
15 min, 20 min, 30 min |
|
