Name: 
 

Algebra 1 Chapter 2



Multiple Choice
Identify the choice that best completes the statement or answers the question.
 
 
Solve the equation.
 

 1. 

–49 = x – 50
a.
–1
b.
1
c.
–99
d.
99
 

 2. 

vmc002-1.jpg = mc002-2.jpg
a.
mc002-3.jpg
b.
mc002-4.jpg
c.
mc002-5.jpg
d.
mc002-6.jpg
 

 3. 

14 = t + 7
a.
11
b.
7
c.
3
d.
21
 

 4. 

d + 0.7 = 0.9
a.
0.2
b.
–1.6
c.
–0.2
d.
1.6
 

 5. 

mc005-1.jpg
a.
mc005-2.jpg
b.
–14
c.
40
d.
–40
 

 6. 

mc006-1.jpgx = 27
a.
65
b.
13
c.
81
d.
72
 

 7. 

9d = –54
a.
6
b.
–9
c.
–5
d.
–6
 

 8. 

mc008-1.jpg
a.
–80
b.
16
c.
–16
d.
1.8
 

 9. 

mc009-1.jpgx + 5 = 8
a.
mc009-2.jpg
b.
mc009-3.jpg
c.
mc009-4.jpg
d.
mc009-5.jpg
 

 10. 

11 = –d + 15
a.
11
b.
–4
c.
4
d.
6
 

 11. 

mc011-1.jpg
a.
–4
b.
–16
c.
15
d.
–5
 

 12. 

37 – 18 + 8w = 67
a.
–6
b.
4
c.
7
d.
6
 

 13. 

3(y + 6) = 30
a.
5
b.
16
c.
4
d.
–16
 

 14. 

mc014-1.jpg
a.
–31
b.
mc014-2.jpg
c.
–50
d.
–35
 

 15. 

4.9x + 4.4 = 19.1
a.
4
b.
3
c.
4.8
d.
7.2
 

 16. 

mc016-1.jpg
a.
–8
b.
2
c.
–10
d.
–4
 

 17. 

mc017-1.jpg
a.
16
b.
0.16
c.
4
d.
2.3
 

 18. 

mc018-1.jpg
a.
28
b.
mc018-2.jpg
c.
mc018-3.jpg
d.
3
 

 19. 

mc019-1.jpg
a.
3
b.
0
c.
–9
d.
–10
 

 20. 

5x – 5 = 3x – 9
a.
–2
b.
1
c.
–1
d.
–3
 

 21. 

8d – 4d – 6d – 8 = 2d
a.
mc021-1.jpg
b.
mc021-2.jpg
c.
mc021-3.jpg
d.
–4
 

 22. 

Two angles are complementary if the sum of their measures is mc022-1.jpg. mc022-2.jpg and mc022-3.jpg are complementary. The measure of mc022-4.jpg is mc022-5.jpg. Write and solve an equation to find the measure of mc022-6.jpg.
a.
mc022-7.jpg; mc022-8.jpg
c.
mc022-11.jpg; mc022-12.jpg
b.
mc022-9.jpg; mc022-10.jpg
d.
mc022-13.jpg; mc022-14.jpg
 

 23. 

The triangle below is isosceles with congruent sides mc023-1.jpg and mc023-2.jpg. Find the value of x.
mc023-3.jpg
a.
4.8
b.
12.2
c.
6.2
d.
19.8
 

 24. 

A gardener measures the tallest of his prize-winning sunflowers and finds that the height is 60 in. The sunflower was 52 in. tall the last time the gardener measured it. Write and solve an equation to find how many inches the sunflower grew.
a.
mc024-1.jpg; mc024-2.jpg
c.
mc024-5.jpg; mc024-6.jpg
b.
mc024-3.jpg; mc024-4.jpg
d.
mc024-7.jpg; mc024-8.jpg
 

 25. 

Sirus wrote a check for $67. He subtracted that amount from his account balance and found that the balance was $329 after writing the check. Write and solve an equation to find his balance before writing the check.
a.
mc025-1.jpg; mc025-2.jpg
c.
mc025-5.jpg; mc025-6.jpg
b.
mc025-3.jpg; mc025-4.jpg
d.
mc025-7.jpg; mc025-8.jpg
 

 26. 

You are driving to visit a friend in another state who lives 440 miles away. You are driving 55 miles per hour and have already driven 275 miles. Write and solve an equation to find how much longer in hours you must drive to reach your destination.
a.
mc026-1.jpg; mc026-2.jpg
c.
mc026-5.jpg; mc026-6.jpg
b.
mc026-3.jpg; mc026-4.jpg
d.
mc026-7.jpg; mc026-8.jpg
 

 27. 

A customer went to a garden shop and bought some potting soil for $17.50 and 4 shrubs. The total bill was $53.50. Write and solve an equation to find the price of each shrub.
a.
4p + $17.50 = $53.50; p = $9.00
c.
4p + 17.5p = $53.50; p = $2.49
b.
4(p + $17.50) = $53.50; p = $4.00
d.
4p + $17.50 = $53.50; p = $11.25
 

 28. 

Steven wants to buy a $565 bicycle. Steven has no money saved, but will be able to deposit $30 into a savings account when he receives his paycheck each Friday. However, before Steven can buy the bike, he must give his sister $65 that he owes her. For how many weeks will Steven need to deposit money into his savings account before he can pay back his sister and buy the bike?
a.
25 weeks
b.
19 weeks
c.
22 weeks
d.
21 weeks
 

 29. 

Which properties of equality justify steps c and f?

mc029-1.jpg
a.
Subtraction Property of Equality; Multiplication Property of Equality
b.
Addition Property of Equality; Division Property of Equality
c.
Addition Property of Equality; Subtraction Property of Equality
d.
Multiplication Property of Equality; Division Property of Equality
 

 30. 

Find the value of y.
mc030-1.jpg
a.
18
b.
1.8
c.
–9
d.
9
 

 31. 

John and 2 friends are going out for pizza for lunch. They split one pizza and 3 large drinks. The pizza cost $14.00. After using a $7.00 gift certificate, they spend a total of $12.10. Write an equation to model this situation, and find the cost of one large drink.
a.
3d + $14.00 – $7.00 = $12.10; $1.70
b.
2d + $14.00 – $7.00 = $12.10; $2.55
c.
3d – $14.00 + $7.00 = $12.10; $9.55
d.
3d + $14.00 – $7.00 = $12.10; $1.90
 

 32. 

Find the measure of mc032-1.jpg. (Hint: The sum of the measures of the angles in a triangle is mc032-2.jpg.)
mc032-3.jpg
a.
mc032-4.jpg
b.
mc032-5.jpg
c.
mc032-6.jpg
d.
8mc032-7.jpg
 

 33. 

a. Find the value of a.
b. Find the value of the marked angles.
mc033-1.jpg
a.
22; 100º
b.
19; 88º
c.
20; 92º
d.
24; 108º
 

 34. 

A camera manufacturer spends $2,100 each day for overhead expenses plus $9 per camera for labor and materials. The cameras sell for $14 each.
a. How many cameras must the company sell in one day to equal its daily costs?
b. If the manufacturer can increase production by 50 cameras per day, what would their daily profit be?
a.
420; $250
b.
480; $550
c.
380; $50     
d.
150; $1100
 

 35. 

A copy center offers its customers two different pricing plans for black and white photocopies of 8.5 in. by 11 in. pages. Customers can either pay $.08 per page or can pay $7.50 for a discount card that lowers the cost to $.05 per page. Write and solve an equation to find the number of photocopies for which the cost of each plan is the same.
a.
mc035-1.jpg; mc035-2.jpg
c.
mc035-5.jpg; mc035-6.jpg
b.
mc035-3.jpg; mc035-4.jpg
d.
mc035-7.jpg; mc035-8.jpg
 

 36. 

Find the value of each variable.
mc036-1.jpg
a.
mc036-2.jpg; mc036-3.jpg; mc036-4.jpg; mc036-5.jpg
c.
mc036-10.jpg; mc036-11.jpg; mc036-12.jpg; mc036-13.jpg
b.
mc036-6.jpg; mc036-7.jpg; mc036-8.jpg; mc036-9.jpg
d.
mc036-14.jpg; mc036-15.jpg; mc036-16.jpg; mc036-17.jpg
 

 37. 

Which equation is an identity?
a.
mc037-1.jpg
c.
mc037-3.jpg
b.
mc037-2.jpg
d.
mc037-4.jpg
 

 38. 

The length of a rectangle is 5 centimeters less than twice its width. The perimeter of the rectangle is 26 cm. What are the dimensions of the rectangle?
a.
length = 5 cm; width = 5 cm
c.
length = 6 cm; width = 7 cm
b.
length = 7 cm; width = 6 cm
d.
length = 4 cm; width = 9 cm
 

 39. 

Peter is reading a 193-page book. He has read three pages more than one fourth of the number of pages he hasn’t yet read.
a. How many pages has he not yet read?
b. Estimate how many days it will take Peter to finish the book if he reads about 8 pages per day.
a.
144; about 18 days
c.
152; about 19 days
b.
147; about 18 days
d.
141; about 18 days
 

 40. 

The sum of two consecutive integers is 59. Write an equation that models this situation and find the values of the two integers.
a.
mc040-1.jpg; mc040-2.jpg; mc040-3.jpg
b.
mc040-4.jpg; mc040-5.jpg; mc040-6.jpg
c.
mc040-7.jpg; mc040-8.jpg; mc040-9.jpg
d.
mc040-10.jpg; mc040-11.jpg; mc040-12.jpg
 

 41. 

The sum of four consecutive odd integers is mc041-1.jpg. Write an equation to model this situation, and find the values of the four integers.
a.
mc041-2.jpg;
mc041-3.jpg; mc041-4.jpg; mc041-5.jpg; mc041-6.jpg
b.
mc041-7.jpg;
mc041-8.jpg; mc041-9.jpg; mc041-10.jpg; mc041-11.jpg
c.
mc041-12.jpg;
mc041-13.jpg; mc041-14.jpg; mc041-15.jpg; mc041-16.jpg
d.
mc041-17.jpg;
mc041-18.jpg; mc041-19.jpg; mc041-20.jpg; mc041-21.jpg
 

 42. 

Carlos and Maria drove a total of 258 miles in 5 hours. Carlos drove the first part of the trip and averaged 53 miles per hour. Maria drove the remainder of the trip and averaged 51 miles per hour. For approximately how many hours did Maria drive? Round your answer to the nearest tenth if necessary.
a.
3.5 hours
b.
2.5 hours
c.
1.8 hours
d.
1.5 hours
 

 43. 

Runner A crosses the starting line of a marathon and runs at an average pace of 5.6 miles per hour. Half an hour later, Runner B crosses the starting line and runs at an average rate of 6.4 miles per hour. If the length of the marathon is 26.2 miles, which runner will finish ahead of the other? Explain.
a.
Runner B; Runner B will catch up to Runner A 4 hours after Runner A crosses the starting line.
b.
Runner B; Runner B will pass Runner A and finish more than half an hour ahead of Runner A.
c.
Runner B; Runner B will catch up to runner A 3.5 hours after Runner A crosses the starting line.
d.
Runner A; Runner B will not be able to catch Runner A in the time it takes Runner A to complete the 26.2 mile course.
 

 44. 

At 9:00 on Saturday morning, two bicyclists heading in opposite directions pass each other on a bicycle path.The bicyclist heading north is riding 6 km/hour faster than the bicyclist heading south. At 10:15, they are 42.5 km apart. Find the two bicyclists’ rates.
a.
northbound bicyclist = 20 km/h; southbound bicyclist = 14 km/h
b.
northbound bicyclist = 23 km/h; southbound bicyclist = 17 km/h
c.
northbound bicyclist = 18 km/h; southbound bicyclist = 11 km/h
d.
northbound bicyclist = 20 km/h; southbound bicyclist = 13 km/h
 

 45. 

Toni rows a boat 4.5 km/h upstream and then turns around and rows 5.5 km/h back downstream to her starting point. If her total rowing time is 48 min, for how long does she row upstream? Express your answer to the nearest minute.
a.
about 44 min
c.
about 24 min
b.
about 26 min
d.
about 30 min
 

 46. 

Solve the formula for area of a trapezoid mc046-1.jpg for b1.
a.
b1 = mc046-2.jpg
c.
b1 = mc046-4.jpg
b.
b1 = mc046-3.jpg
d.
b1 = mc046-5.jpg
 

 47. 

The formula for converting degrees Celsius (C) to degrees Fahrenheit (F) is mc047-1.jpg. Solve the formula for degrees Celsius (C). Then find the temperature in degrees Celsius (C) when the temperature in degrees Fahrenheit (F) is –4.
a.
–20° C
b.
–29° C
c.
–14° C
d.
–7° C
 

 48. 

Solve the equation for a.
mc048-1.jpg
a.
mc048-2.jpg
b.
mc048-3.jpg
c.
mc048-4.jpg
d.
mc048-5.jpg
 
 
Solve the equation for the given variable.
 

 49. 

mc049-1.jpg; w
a.
mc049-2.jpg
b.
mc049-3.jpg
c.
mc049-4.jpg
d.
mc049-5.jpg
 

 50. 

mc050-1.jpg; x
a.
mc050-2.jpg
b.
mc050-3.jpg
c.
mc050-4.jpg
d.
mc050-5.jpg
 

 51. 

mc051-1.jpg; z
a.
mc051-2.jpg
b.
mc051-3.jpg
c.
mc051-4.jpg
d.
mc051-5.jpg
 

 52. 

mc052-1.jpg; t
a.
mc052-2.jpg
b.
mc052-3.jpg
c.
mc052-4.jpg
d.
mc052-5.jpg
 

 53. 

Over the first five years of owning her car, Gina drove about 12,700 miles the first year, 15,478 miles the second year, 12,675 the third year, 11,850 the fourth year, and 13,075 the fifth year.
a. Find the mean, median, and mode of this data.
b. Explain which measure of central tendency will best predict how many miles Gina will drive in the sixth year.
a.
mean = 12,700; median = 13,156; no mode; the mean is the best choice because it is representative of the entire data set.
b.
mean = 13,156; median = 12,700; mode = 3,628; the median is the best choice because it is not skewed by the high outlier.
c.
mean = 13,156; median = 12,700; no mode; the mean is the best choice because it is representative of the entire data set.
d.
mean = 13,156; median = 12,700; no mode; the median is the best choice because it is not skewed by the high outlier.
 

 54. 

Angela’s average for six math tests is 87. On her first four tests she had scores of 93, 87, 82, and 86. On her last test, she scored 4 points lower than she did on her fifth test. What scores did Angela receive on her fifth and sixth tests?
a.
fifth test = 85; sixth test = 89
c.
fifth test = 90; sixth test = 86
b.
fifth test = 85; sixth test = 81
d.
fifth test = 89; sixth test = 85
 

 55. 

Your math teacher allows you to choose the most favorable measure of central tendency of your test scores to determine your grade for the term. On six tests you earn scores of 89, 81, 85, 82, 89, and 89. What is your grade to the nearest whole number, and which measure of central tendency should you choose?
a.
87; the median
b.
89; the mean
c.
91; the mode
d.
89; the mode
 
 
Write and solve an equation to find the value of the variable.
 

 56. 

104, 137, 154, 131, x; mean = 130
a.
124
b.
125
c.
127
d.
122
 

 57. 

5.2, 8.3, 8.5, 7.7, 7.8, y; mean = 7.1
a.
5.8
b.
3.9
c.
5.1
d.
5.3
 

 58. 

A carpenter cut four lengths of wood. The lengths were mc058-1.jpg in., mc058-2.jpg in., mc058-3.jpg in., and z in. If the mean of the lengths is mc058-4.jpg in., what was the length of the fourth piece of wood the carpenter cut?
a.
mc058-5.jpg in.
b.
mc058-6.jpg in.
c.
mc058-7.jpg in.
d.
mc058-8.jpg in.
 
 
Find the range.
 

 59. 

3   –9   7   –1   5   –4   2
a.
8
b.
–1
c.
16
d.
2
 

 60. 

4.7   6.3   5.4   3.2   4.9
a.
–9.5
b.
9.5
c.
–3.1
d.
3.1
 

 61. 

Find the mean and range.
18mc061-1.jpg23mc061-2.jpg10mc061-3.jpg39mc061-4.jpg22mc061-5.jpg17mc061-6.jpg16mc061-7.jpg15
a.
mean = 20; range = 29
c.
mean = 21.9; range = 29
b.
mean = 20; range = 32
d.
mean = 18.1; range = 28
 

 62. 

Make a stem-and-leaf plot for the following set of data.
1.1, 1.3, 1.8, 2.2, 2.6, 2.8, 3.1, 3.8
a.
mc062-1.jpg
1 ½ 1 = 1.1
c.
mc062-3.jpg
1 ½ 0.1 = 1.01
b.
mc062-2.jpg
1 ½ 1 = 1.1
d.
mc062-4.jpg
1 ½ 8 = 1.8
 

 63. 

Determine whether the statement is sometimes, always or never true.
If ax + b – 4 = b and mc063-1.jpg then mc063-2.jpg.
a.
always
b.
sometimes
c.
never
 

 64. 

The perimeter of the rectangle is 24 cm. Find the value of x.
mc064-1.jpg
a.
3
b.
12
c.
mc064-2.jpg
d.
18
 

 65. 

Determine whether the following statement is sometimes, always, or never true.
If two sets of data have the same range and the same mean then they have the same mode.
a.
sometimes
b.
always
c.
never
 

Short Answer
 

 66. 

Justify each step.
sa066-1.jpg
 

 67. 

Bob and Nancy recorded their last ten rounds of golf scores in the stem-and-leaf plot below. Use measures of central tendency to justify your answers.
a. Who is the better golfer? (A player with a lower score beats a player with a higher score.)
b. Is one golfer more consistent than the other? Explain.

Nancy
StemBob
9  8  7
7
5  9
8  6  5  5  2
8
3  3  3  8  9
1  0
9
0  3  7

7 ½5 = 75
 

 68. 

A class writes the equation n + n + 1 + n + 2 = 87 to solve the following problem.

      The sum of 3 consecutive odd integers is 87. Find the three integers.

What error did they make?
 

Essay
 

 69. 

Solve the equation. Justify each step.
–10x + 5 = –15
 

 70. 

Determine whether the following statement is sometimes, always, or never true. Show your work.

Every 2-digit number ending in 5 can be written as the sum of three consecutive integers.
(Hint: Try 15 and 25.)
 

 71. 

The length of a rectangle is 8 cm more than 3 times its width. The perimeter of the rectangle is 64 cm.
a. What are the dimensions of the rectangle? Show your work.
b. What is the area of the rectangle? Show your work.
 

 72. 

The formula for converting temperature in degrees Fahrenheit (F) to degrees Celsius (C) is es072-1.jpg. For outdoor temperatures in the United States, here is an easy way to estimate the temperature in degrees Fahrenheit (F) when you know the temperature in degrees Celsius (C): Double the number of degrees Celsius (C) and add 30.
a. Does this method provide a reasonable estimate of degrees Fahrenheit (F)? Explain
(hint: Solve es072-2.jpg for F.)
b. Use this method to estimate the temperature in degrees Fahrenheit (F) when it is 25°C outside. Show your work.
c. How far is the estimate from the actual Fahrenheit temperature?
 

Other
 

 73. 

Explain the error in the student’s work.

ot073-1.jpg
 

 74. 

Explain why this statement is always true.

If x is an odd integer, then the median of x, x + 2, x + 6, and x + 10 is an odd number.
 

 75. 

The standard method for solving an equation like ot075-1.jpg is to use the Subtraction Property of Equality and then the Division Property of Equality. It is possible to solve the equation using the properties in the reverse order. Explain why the standard method is better.
 



 
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