NAME:
REGULAR QUIZ #2
MATH 084.09
10 / 23 / 2012
Provide work and results for the following problems (checking answers is
recommended but not required):
1. Solve:
4(7x − 9) − (24x − 8) = 30
2. Solve:
0.72 = 0.2x + 0.4
3. Solve:
── y + 5 = 11
4. Solve:
0.08D + 1.6 = 0.06D − 2.4
5. Solve:
── k + ── = ──
6. An owner of an apartment building is running a promotion, offering a 30%
discount on monthly rent for the first 6 months of a 2 year lease. If the
discounted rent on a one bedroom apartment is $625, what will the monthly
rent be for the last 18 months of a 2 year lease?
7. Solve the following equation for A in terms of C & D:
C = ─────────
8. When a car traveling at speed Vi accelerates with acceleration a for t
seconds, the car's final speed Vf is given by the formula: Vf = Vi + at
If it takes 4 seconds for the car to speed up from 66 ft/sec (45 MPH) to
88 ft/sec (60 MPH) in order to pass a slow car, what is the acceleration (in
ft2/sec) required for the car to do this?
For 9 and 10, use a number line or interval notation to show the answers.
9. Solve the inequality:
5x + 8 < 2x + 29
10. Solve the inequality:
1−x > 6