Download Study guide 7.13

MATH-7
SOL Review 7.13 - Expressions and Equations
Exam not valid for Paper Pencil Test Sessions
[Exam ID:2YE8H2
1
"Sixty less forty is some number." If n is that number, which best represents the statement?
A 60 < 40 - n
B 60 - 40 = n
C 60 < 40 + n
D 40 - 60 = n
2
If w stands for the number, which best represents the sentence below? "A number less the quotient of one and four is ten."
1 < 10
4 1 B w - = 10
4 1 C
- w = 10
4 1 D
- 10 < w
4 A w - 3
If x stands for the number, which best represents the sentence below? "A number less four is twelve."
4
A
B
C
D
E
12 - x = 4
12 - 4 = x
x - 12 = 4
4 - x = 12
x - 4 = 12
Which statement best describes an expression?
A An expression can contain only numbers with an equal sign.
B An expression can contain only numbers, but not an equal sign.
C An expression can contain numbers, variables, and an equal sign.
D An expression can contain numbers and variables, but not an equal sign.
5
How is "nine times the sum of a and b" expressed algebraically? A a9 + b
B 9(a + b)
9 C
a + b D 9a + b
6
If p stands for the number, which best represents the sentence below? "Five less than the quotient of a number and ten is eleven."
p + 11
10 p B 5 - = 11
10 p C
- 5 = 11
10 p D
+ 10 < 11
5 A 5 < 7
If n stands for a number, which best represents the following phrase? the difference of a number and eight divided by 10
n + 8 10 n B
- 8
10 8 - n C
10 n - 8 D
10 A
8
Which is an equation?
A 3(x+y) > 8
B 3x + y = 8
C 3x
D 3(x+y)
9
Which is not an expression?
A 5abc
7 + 2y B
2x C 3x + 2
D x - 4 = 6
10 Which phrase best represents 7n + 8 ?
A
B
C
D
Eight more than the product of seven and a number
Seven more than the product of eight and a number
The product of eight and a number increased by seven
The product of seven and eight increased by a number
11 Which of the following represents the sentence shown? “Twice a number, n, decreased by six is fourteen.”
A 2n - 6 = 14
B 2n + 6 = 14
C 2(n - 6) = 14
D 2 + n - 6 = 14
12
If a = 3, what is the value of A 0
13
What is the value of A
B
C
D
14
B 4
D 18
13w + 2w - 7 if w = -3?
13 -4
-17
-10
-16
What is the value of A
B
C
D
8a - 2a • 2 ?
2 C 14
11
-5
12
-3
y 2x 2 - 11x - 1 + if x = 3, y = 7, and z = 2?
z 2 E 36
15
If b = 5, what is the value of 7 + A
B
C
D
16
17
14
13
6.25
12.25
If y = -5, what is the value of A
B
C
D
13
-23
11
-24
Evaluate 3r3 + 5, when r = 2.
A
B
C
D
5b - 1?
4 29
23
43
59
2y + 2 - 6 + 3y ?
4