Ch. 3 Test!
Try these practice problems:
1) Solve and graph:
–6b > 42 or 4b > –4
2) Solve and graph:
2| d + 5 | – 1 < 3
3) Solve:
2(5y + 13) – 5.7 < 20.3
4) Solve:
| 5x + 13| = –7
5) Suppose you are working for a train company. Your job is to load a train
with at least 7500 lb of freight. You have loaded 5436 lb of freight, but you have
to unload 50 lb that was loaded by mistake. Write and solve an inequality to
find how many more pounds you need to load.
6) The theater club is sponsoring four shows. They hope the average attendance for the four shows will be between 150 and 220, inclusive. The attendance for the first three shows was 170, 205, and 191. What possible attendance numbers for the fourth show will allow them to reach their goal? Write and solve an inequality for this situation.
