Download PreAlgebra Midterm 2010 Renumbered - Aventura Waterways K

Student Name _________________________
Period________________
Choose the best answer.
1. Write 324 using base 18 and an
exponent.
A 218
C 184
B 182
D 1818
F five 3’s
G 3 multiplied by itself 5 times
H 3 times 5
I three 5’s multiplied together
3. Evaluate 4  3  12  2.
B 20
4. Evaluate
52
G 12
G 4x  3y  z
H 4x  3y  z
10. Determine which number is a
solution of 7n  56.
A 8
C 8
B 11
D 49
11. Determine which number is a
solution of x  14  29.
H 15
D 42
G 15
I 43
H 57
I 112
F Commutative
12. Solve the equation b  23  14.
A 37
C 9
B 9
D 37
13. Solve the equation
F 4
G Associative
G 16
H Identity
I Distributive
6.Evaluate the expression a  b for
a  15 and b  6.
G –21
F 8x  4y  z
F 43
5. Which property is represented?
3  (16  7)  (3  16)  7
F –11
9. Combine like terms in the expression
6x  4y  z  2x  y.
C 22
 3  5  4  2.
F 8
Midterm MJ3 January 2011
I 4xyz
2. What does 35 mean?
A 13
Date ________________________
H 9
I 11
7. Evaluate x2  3x for x  4.
A 0.36  1010
C 3.6  1010
B 3.6  109
D 36  1010
15. The sun is 93 million miles from Earth.
Write this number in scientific
notation.
C 20
F 93  106
B 4
D 28
G 9.3  107
A 3n  5
C (5  3)n
B 5  3n
D 3(n  5)
I 1,024
14. Write 36,000,000,000 in scientific
notation.
A 4
8.Write “5 less than the product of a
number and 3” as an algebraic
expression.
d
 64.
4
H 256
H 93,000,000
I 93  1,000,000
16. Write the numbers 2, 5, 0, 1, and 3
25. Which decimal is equivalent to
in order from least to greatest.
A 2, 5, 0, 1, 3
A 1.22
C 11.9
B 2, 1, 0, 3, 5
B 0.119
D 1.2
C 0, 1, 2, 3, 5
26. Which fraction is equivalent to
0.06?
1
6
F 
H 
10
6
3
3
G 
I 
50
5
27. Which set of numbers is in order from
least to greatest?
D 5, 3, 2, 1, 0
17. Find |4|.
F 4
G 0
H 1
I 4
18. Find the sum 25  (12)  (9).
A 4
C 26
B 22
D 46
8
2
F 6.8, 6 6.61,6
21
3
19. Evaluate x  y for x 5, y  16.
F 21
H 11
G 11
I 21
20. Find the difference  21  15.
A 36
C 36
B 6
D 6
21. Find the difference 7  (8).
F 15
G 1
I 56
22. Find the product 8 • (7).
C 1
B 15
D 56
23. Find the quotient 48  (6).
F 42
G 8
G 6
8
2
, 6  6.61, 6.8
21
3
H 6
8
2
, 6.616 , 6.8
21
3
I 6
8
2
, 6.8, 6.61, 6
21
3
28. There are 14 cars, 8 minivans, and
5 trucks in a parking lot. Write the
ratio of minivans to trucks in all three
forms.
H 15
A 56
11
?
9
H 8
I 54
A
14
, 14 to 5, 14:5
5
B
8
, 8 to 5, 8:5
5
C
5
, 5 to 8, 5:8
8
27
, 27 to 5, 27:5
5
29. On a recent trip, Josh drove
324 miles and used 12 gallons of
gasoline. Find the unit rate.
24. Which two fractions are equivalent to
12
?
15
4 36
2 24
A
,
C
,
5 45
3 30
3 36
6 24
B
,
D
,
5 45
5 30
D
F 12 miles per gallon
G 27 gallons per mile
H 27 miles per gallon
I 330 miles per gallon
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37. What values for x and y complete the
table to show a proportional
relationship?
30. Marlee drove 60 miles using 2 gallons
of gas. Which is the unit rate in
fraction form?
A
1 gallon
30 miles
C
30 miles
1 gallon
B
1 gallon
60 miles
D
60 miles
1 gallon
x-values
y-values
2 3
,
3 4
H
2
9
A 3; 6
C 6; 8
B 3; 8
D 3; 8
4
12
38. Does the graph show a constant or
variable rate of change? If constant,
what is the slope of the line?
31. Which of the following ratios are
proportional?
F
1
3
6 9
,
9 12
5 11
3 9
,
I
,
6 12
5 15
32. Which is the solution to the proportion
3 12
?

5 x
A x  15
C x  30
G
B x  20
D x  60
33. If it costs $2.60 to purchase
4 croissants, how much would it
cost to purchase 7 croissants?
F $3.25
H $4.55
G $3.90
I $5.20
A Constant, 
B Variable, 
34. Give the coordinates of the point in
Quadrant III that is 4 units to the left
and 2 units down from the origin.
A (4, 2)
C (4, 2)
B (2, 4)
D (4, 2)
C Constant,
D Variable,
H Quadrant III
I Quadrant IV
H y5
G y  5
I y7
3
2
3
2
A y  2x
C y  3x  9
B y  x2
D xy  8
40. What is the direct variation equation
that the data represents?
x-values
y-values
36. What is the output value y for
y  2x  1 if the input value x is 3?
F y  7
3
2
39. Which equation represents a direct
variation?
35. Identify the quadrant in which each
point has an x-coordinate that is
positive and a y-coordinate that is
negative.
F Quadrant I
G Quadrant II
3
2
F y  2x
G 2y  x
2
4
4
8
6
12
H yx2
I xy  2
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Holt McDougal Mathematics
41. What value for y completes the table
to represent an inverse variation?
x-values
4
6
8
y-values
12
6
A 7
C 24
B 8
D 12
F 0.75%
G 25%
H 34%
I 75%
47. Mr. Ricardo bought a set of luggage
that regularly sells for $249.95. It was
on sale at a discount of 30%. About
how much was the discount?
Use the graph for 42-43.
F $30
G $75
H $90
I $175
48. 58% of 90 is what number?
A 5.22
C 52.2
B 48.8
D 64.4
49. Find 150% of 42.
F 21
G 42.5
A x-intercept: 3; y-intercept: 6
B x-intercept: 3; y-intercept: 6
D x-intercept: 6; y-intercept: 3
I x  2y  6
32
100
16
B 0.32,
50
C 0.32,
45. What is 0.625 written as a percent?
B 6.25%
D 62.5%
46. What is the fraction
H 7%
I 7.5%
A 20%
C 200%
B 30%
D 300%
53. If 120 is decreased to 90, find the
percent change.
8
D 32.0,
25
C 37.5%
D 400
52. Find the percent of change when 15 is
increased to 45.
8
25
A 0.625%
B 40
G 6.5%
44. Which shows 32% as both a decimal
and a fraction in simplest form?
A 0.32,
C 90
F 6%
43. Which is the equation of the line in
slope-intercept form?
G y  2x  6
A 9
51. The sales tax on a phone that sells for
$90 is $6.75. What is the sales tax
rate?
C x-intercept: 6; y-intercept: 3
H x  2y  6
I 84
50. 60 is 15% of what number?
42. Which are the x- and y-intercepts of
the graph?
F y  2x  6
H 63
F 9%
H 33%
G 25%
I 75%
54. A retailer buys jackets at a cost of
$24 each and marks the price up by
175%. What is the retail price of a
jacket?
3
expressed as
4
a percent?
F $16
H $42
G $28
I $66
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Holt McDougal Mathematics
Name _______________________________________ Date __________________ Class __________________
55. If I  $60, r  4%, and t  3 years,
find the value of P.
A $7.20
C $720.00
B $500.00
D $4,500.00
56. Suki deposits $2,600 in a bank
account that pays 3% simple interest
per year. How much interest will she
earn in 7 years?
F $123
H $1,238
G $546
I $5,460
57. Solve 5x  12  2x  55.
A x4
C x  13
B x9
D x  17
58. Solve 2(6  n)  18.
F n  16
G n  3
59. Solve
H n3
I n  16
a
 3  9.
4
A a  12
C a  36
B a  24
D a  48
60. Solve y  18  4y  42.
F y  4.8
G y6
H y  12
I y  15
61. Review various formulas
Studied throughout the year.
62. Review all information from
Mathematics Learning Journal.
63. Review Squares and Square Root.
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Name _______________________________________ Date __________________ Class __________________
Original content Copyright © by Holt McDougal. Additions and changes to the original content are the responsibility of the instructor.
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Holt McDougal Mathematics