Steve and Laurie Carah borrowed $4500 from their credit union to remodel their kitchen. The simple interest rate was 4.75% and the length of the loan was 3 years. How much did the Carahs pay for the use of the loan? Determine the amount the Carahs paid to the credit union on the date of maturity of the loan.
x + 3 = 7/4
____
6
What is the value of x?
1. .43
2. 9.75
3. 7.5
4. .67
12. 20% of the number m is 55. 30% of the number n is 60.
n is what % of m?
A. 73%
B. 27%
C. 138%
D. 1.64%
E. 0.73%
1.. The following are the first four terms of geometric sequence:
18, -6, 2, – 2/3
What is the 10th term in this sequence?
A. 2/729
B. 6/6,561
C. 2/-2,187
D. 2/2,187
E. -2/-729
3. The temperature outside yesterday was 17 degrees below zero. Today it is 53 above zero. What is the change in temperture?
A. 36 degrees (this is what I think it is but what do you think)
B. 46 degrees
C. 50 degrees
D. 60 degrees
5. A tank contains 450 gallons of water and empties 1/2 gallon every hour. How many hours would it take to reduce the content of the tank to 350 gallons?
A. 50 hours
B. 100 hours
C. 150 hours
D. 200 hours
E. 250 hours
15. Analyze the following problem:
Step 1: 3 (x +2)=9(x- 6)
Step 2: 3x + 6=9x-54
Step 3: -6x=-60
Step 4: x= -10
Which mathematical operation (s) have been applied incorrectly:
Choose 2 answers
A. Division of real numbers.
B. Combining like terms.
C. Order of operations.
D. Step 2 should be 3x + 2=9x -6
E. Step 3 should be 12x = -60
F. Step 4 should be x =10
16. 5x-2y=8
and x-5y= -3
A. -2
B. -1
C. 0
D. 1
E. 2
18. 10 = 5x + 2 + 3/x
______
2x
What is the value of x for the given equation?
A. 2/5
B. 8/15
C. 2/3
D. 4/5
E. 1/5
23. The length of a rectangle is 5 meters less than 3 times the width. The perimeter of the rectangle is 48 meters.
What is the length of the rectangle?
A. 7.25 meters
B. 10..75 meters
C. 15.75 meters
D. 16.75 meters
E. 17.75 meters
26. Which distance is equivalent to 3 miles and 120 feet?
A. 5,320 in
B. 15,960 ft
C. 15,960 in
D. 15.960 yds
E. 191,520 ft
F. 191,520 yds
30. A crew is laying floor tiles in a mall. The length of the rectangle corridor to be tiled is 8 times the corridor’s width. The total area to be titled is 18,432 square feet.
What is the length of the corridor?
A. 48.0 feet
B. 135.7 feet
C. 384.0 feet
D. 2, 304.0 feet (this is what I think but I’m not for sure)
33. An experimental study is conducted. Which oof the following statements are necessarily true?
Choose 3 answers
A. The experimenter observed actions as they happened (without interferring) and drew conclusions from the results.
B. The sample was statified.
C. The subjects were assigned to groups randomly.
D. The treatments were applied to the groups randomly.
D. The experimenter manipulated one of the variables and observed the effects on the other variables.
34. A set of numeric data has been collected.
Match each description of how the data should be displayed with the name of the graph.
A. Percentiles
B. Stem-and leaf-plot
C. Median
D. Mean
E. Times Series graph
F. Pareto Chart
Match A, B, C, D, E, F to the numbers below:
1. Display the distribution dividend into 100 groups.
2. Display the frequently distribution for catergorical variables in descending order.
3. Display the midpoint of a data set.
4. Display the frequentcy of various groups of the data maintaining the actual data values.
35. A poll shows that one presidential candidate has 51% of the vote, and the other has 47% of hte vote. The poll was given by telephone to a randomly selected sample of 1,157 registered voters. The stated margin of the error is 3% at the 95% confidence level.
Select one.
A. There is a 95% chance that the second candidate will receive between 44% and 50% of the popular vote.
B. The first candidate has a 95% chance of winning the election.
C. The first candidate will win the election because that candidate is ahead by more than three percentage points.
D. The second candidate has between a 44% and 50% chance of winning the election.
36. A fair coin is tossed 5 times.
What is hte probability of obtaining exactly 3 heads?
A. 1/32
B. 5/96
C. 3/32
D. 1/16
E. 5/16
From a group of 100 students, 30 are taking math, 20 are taking chemistry, and 10 are taking both math and chemistry. What is the probability that a randomly selected student is taking math or chemistry?
A. 1/5
B. 2/5
C. 3/5
D. 4/5
E. 1/2
38. Information is being collected about university students at a particular University. Assume all sampling methods are feasible. Match each method of selection to the type of sample.
A. Random sample
B. Nonrandom sample
1. Randomly selecting 50 male students.
2. Randomly selecting freshman students.
3. Students are selected from randomly generated ID numbers.
4.