Transcript ch01_quiz

Lesson
Quizzes
1-1
Evaluating
Algebraic Expressions
Preview
1-1: Evaluating Algebraic Expressions
1-2: Writing Algebraic Expressions
1-3: Integers and Absolute Value
1-4: Adding Integers
1-5: Subtracting Integers
1-6: Multiplying and Dividing Integers
1-7: Solving Equations by Adding or Subtracting
1-8: Solving Equations by Multiplying or Dividing
1-9: Solving Two-Step Equations
Holt CA Course 2
1-1 Evaluating
Algebraic
ExpressionsExpressions
1-1
Evaluating
Algebraic
Lesson Quiz
Evaluate each expression for the given value(s) of
the variables.
1. 6x + 9 for x = 3
27
2. x + 14 for x = 8
22
3. 4x + 3y for x = 2, y = 3
4. y(27 – x) for x = 19, y = 6
17
48
5. If n is the amount of money in a savings account,
then the expression n + 0.03n can be used to find
the amount in the account after it has earned
$515
interest for one year. Find the total in the
account after one year if $500 is the initial amount.
Holt CA Course 2
1-2 Writing
AlgebraicAlgebraic
Expressions Expressions
1-1
Evaluating
Lesson Quiz
Write an algebraic expression for each word
phrase.
1. 5 less than a number k
k–5
2. a number x divided by 11
x
11
3. 4 times the sum of n and 5
4(n + 5)
Write an algebraic expression to evaluate the
word problem.
4. Karen buys n raffle tickets for $0.50 each. If she
buys 13 of them, how much will they cost?
0.50n; $6.50
Holt CA Course 2
1-3 Integers
and Absolute
Value
1-1
Evaluating
Algebraic
Expressions
Lesson Quiz
1. At the end of the course, your golf score was
–2. Your friend’s score was 7. Use <, >, or =
to compare your scores. –2 < 7
Write the integers in order from least to
greatest.
2. –17, –26, 23
–26, – 17, 23
3. 0, 5, –4
–4, 0, 5
Simplify each expression.
4. |–4| + |–2|
6
5. |6 + 13| – |7 – 5| 17
Holt CA Course 2
1-4
Integers
1-1Adding
Evaluating
Algebraic Expressions
Lesson Quiz
Add.
1. –7 + (–7) –14
2. 15 + (–9) + (–2) 4
Evaluate each expression for the given value of
the variable.
–2
3. 13 + r for r = –15
–13
4. 2 + b + (–9) for b = –6
5. On Monday, a local dog shelter had six dogs.
By Friday, they had found homes for three, but
took in two more. Then how many dogs were
in the shelter? 5 dogs
Holt CA Course 2
1-5 Subtracting
Integers
1-1
Evaluating
Algebraic Expressions
Lesson Quiz
Subtract.
1. –6 – (–4) –2 2. –3 – 3 –6
3. 4 – (–5) 9
Evaluate each expression for the given
value of the variable.
4. 9 – s for s = –5
14
5. –4 – w + 5 for w = 21
–20
6. Suretta is flying in an airplane and rises an
additional 20 feet. Then she descends 190
feet toward the ground. How far below her
original height did Suretta go? 170 feet
Holt CA Course 2
1-6 Multiplying
and Dividing
IntegersExpressions
1-1
Evaluating
Algebraic
Lesson Quiz
Multiply or divide.
1. –8(4)
–32
2. –12(5)
–10
6
Simplify.
3. –2(13 – 4) –18
4. 6(–5 – 3) –48
5. Evin completes 11 transactions in his
bank account. In 6 transactions, he
withdraws $10. In 5 transactions, he
deposits $20. Find the total net
change in dollars. $40
Holt CA Course 2
1-7 Solving
EquationsAlgebraic
by Adding or Subtracting
1-1
Evaluating
Expressions
Lesson Quiz
Determine which value of x is a solution of each
equation.
1. x + 9 = 17; x = 6, 8, or 26 8
2. x – 3 = 18; x = 15, 18, or 21 21
Solve.
3. a + 4 = 22 a = 18
4. n – 6 = 39 n = 45
5. The price of your favorite cereal is now $4.25. In
prior weeks the price was $3.69. Write and solve an
equation to find n, the increase in the price of the
cereal.
3.69 + n = 4.25; $0.56
Holt CA Course 2
1-8
Equations Algebraic
by Multiplying Expressions
or Dividing
1-1Solving
Evaluating
Lesson Quiz
Solve.
1. 3t = 9
3.
x
= –7
–4
t=3
2. –15 = 3b
x = 28
4. z ÷ 4 = 22 z = 88
b = –5
5. A roller coaster descends a hill at a rate of 80 feet
per second. The bottom of the hill is 400 feet
from the top. How long will it take the coaster
rides to reach the bottom? 5 seconds
6. A lot must be cleared so that a new building can
be constructed. A crew of 7 workers is assigned to
the task and each person works the same number
of hours. It takes 525 person-hours to complete
the job. How many hours does each person work? 75 hr
Holt CA Course 2
1-9 Solving
Two-Step Algebraic
Equations
1-1
Evaluating
Expressions
Lesson Quiz
Translate the sentence into an equation.
1. The product of –3 and a number c, plus 14, is –7.
–3c + 14 = –7
Solve.
2. 17 = 2x – 3 10
4. w – 5 = 1 12
2
3. –4m + 3 = 15 –3
x
4
5. 2 = 3 –
4
6. A discount movie pass costs $14. With the
pass, movie tickets cost $6 each. Fern spent
a total of $68 on the pass and movie tickets.
How many movies did he see? 9
Holt CA Course 2