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Math 001 Exam2A (^) October 20, 1997
50 Minutes
Show all of your work for full credit. Put a are in [ ]'s.
NAME__
SECTION
around your final answer. Point values
I. Circle True or False. If false, correct the statement to make it true.
[3] (^) True False
[3] 2. -% of 100 is 50 True False
[3] 3. = jc 2 +9^ True False
[3] 4. "x is at least 5" means x>5 True False
[3] 5. .000051 = 5.1 x 105 (^) True False
[3] 6. --4=4 (^) True False
II. Show all of your work. Write exact answers unless otherwise specified.
[4] 1. (a) Write as a ratio in reduced form: 40 seconds to 5 minutes
[4] (b) If inch represents 15 miles on a map, how many miles does 3 inches represent?
[3] 2. Solve for L: P = 2L + 2W
CONTINUED ON THE BACK
[6] 3. Solve then graph the solution: 8 - 4(3x + 5) < 6(x - 8)
[5] 4. Complete the table below for y = -x 2 - 4
X y
o A. -1 (^0 1 )
- Refer to 4x + 3y = 12 for parts a - d below.
[2] (a) What is the x - intercept?
[2] (b) What is the y - intercept?
[2] (c) What is any other solution?
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[2] (d) Sketch ths graph using your points from parts a, b, and c.
VI. Show all work to receive credit.
[8] 1. During the Columbus Day sale, a watch was discounted by $20. The list price of the watch is $95. What is the discount rate?
a. Define your unknown.
b. Write a verbal model.
c. Write an algebraic equation.
d. Solve your equation.
e. Answer the question.
[8] 2. Two trains start at the same point and travel in the same direction at average speeds of 35 miles per hour and 50 miles per hour. How much time must elapse before ths two trains are 10 miles apart?
a. Define your unknown.
b. Write a verbal model.
c. Write an algebraic equation.
d. Solve your equation.
e. Answer the question.
