Write an algebraic expression for each phrase.
10 less than m
1
m - 10
2
Write an algebraic expression for each phrase.
the quotient of 15 and q
3
15
q
4
Define the variable. Write an algebraic
expression for each phrase.
the sum of twice a number and 17
5
let n = a number
2n + 17
6
Write an algebraic expression for each phrase.
the product of 7 and the sum of a number and 4
7
let y = a number
7(y + 4)
8
Define the variable and write an algebraic equation
for each phrase.
The number of gallons of water used to water
trees is 30 times the number of trees
9
Let y = the amount of gallons of water
x = number of trees
y = 30x
10
Define variables and write an equation to model the
relationship in each table.
Number of
Hours
Distance
Traveled
1
55 mi.
3
165 mi.
5
275 mi.
11
Let D = distance traveled
t = time
D = 55t
12
Simplify the equation.
4 + 3(15 - 2
3)
13
25
14
Simplify the expression
5[2(8+5) - 15]
15
55
16
Simplify the expression
4(8 - 3)
3+2
17
4
18
Evaluate the expression
x + 3y
2
If x = 6 and y = 4
19
54
20
Evaluate the expression.
3(b - 2)
4(a+1)
If a = 2 and b = 10
21
2
22
Evaluate the expression
4
9b + a ÷ 8
If a = 2 and b = 6
23
56
24
Name the set(s) of numbers to which each number
belongs.
3.4
25
Rational Numbers
26
Name the set(s) of numbers to which each number
belongs.
-22
27
Integers and Rational Numbers
28
Name the set(s) of numbers to which each number
belongs.
11047
29
Rational Number, Integers, Whole Numbers,
and Natural Numbers
30
Is the statement true or false? If the statement is false,
give a counterexample.
Every whole number is a natural number.
31
False, 0
32
Is the statement true or false? If the statement is false,
give a counterexample.
Every whole number is a integer.
33
True
34
Order the numbers in each group from least to greatest.
- 3 ,- 7 ,- 2
4
8
3
35
7
3
2
,,8
4
3
36
Order the numbers in each group from least to greatest.
3 5 2 7 5
4 6 3 8 8
37
5 2 3 5 7
8 3 4 6 8
38
The relationships in the tables below are functions.
Write a function rule for each.
Number of
Baseball
Teams
Number of
Players
Required
1
9
2
18
3
27
4
36
39
let p = number of players
t = number of teams
p = 9t
40
the amount of money earned babysitting increases
with the number of hours spent babysitting.
Identify the independent variable.
Identify the dependent variable
41
Independent - number of hours babysitting
Dependent - amount of money earned
42
Would you expect a positive correlation, a negative
correlation, or no correlation between the two data sets?
a person's age and the # of pets he or she has
43
No Correlation
44
Would you expect a positive correlation, a negative
correlation, or no correlation between the two data sets?
The homework completed versus the number
of hours watching tv.
45
Negative Correlation
46
Would you expect a positive correlation, a negative
correlation, or no correlation between the two data sets?
the number of times you brush your teeth and the number
of cavities you get.
47
Negative Correlation
48
Use the following set of data to answer the following.
Utility bills for the past 6 months.
$90, $140, $140, $134, $120, $126
Make a stem and leaf plot for the data.
Find the range.
Find the mode.
Find the median.
Find the mean.
Is there an outlier?
What is the best measure of central tendency?
49
9
10
11
12
13
14
0
mean: 125
median: 130
0 6
4
0 0
mode: 140
range: 50
outlier: 90
best measure of central tendency is the median
50