AnswersPre-Algebra A-CRWriting and Evaluating Expressions

Writing and Evaluating Expressions Answers

12 verified answers
1
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A
First, write an expression.
B
The correct expression is n + 8.
C
The correct expression is 8n.
D
Second, substitute 5.3 for the variable, n.
E
Third, simplify by adding 5.3 and 8.
F
Third, simplify by multiplying 5.3 and 8.
G
The answer is 42.4.
H
The answer is 13.3.
2
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Second, 7 in for the variable, p.

A
evaluate
B
simplify
C
substitute
3

Third, by 7 and 5.

A
simplify
B
substitute
C
variable
4

Third, by 7 and 5.

A
adding
B
dividing
C
multiplying
D
subtracting
5

The answer is

A
1.4
B
2
C
12
D
35
6

First, write the expression .

A
p + 5
B
p – 5
C
p/5
7

Which would you simplify in order to evaluate the expression when the value of the variable is 2?

A
8.9/2
B
8.9 + 2
C
8.9(2)
D
(8.92)
8

First, write the expression .

A
s + 2
B
s – 2
C
2s
D
s/2
9

Second, 125 in for the variable s.

A
evaluate
B
simplify
C
substitute
10

Third, by 125 and 2.

A
evaluate
B
simplify
C
substitute
11

Third, by 125 and 2.

A
adding
B
dividing
C
multiplying
D
subtracting
12

The answer is .

A
$62.50
B
$123
C
$127
D
$250

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