AnswersPre-Algebra - MA3119 A Distance LearningWriting and Evaluating Expressions

Expressions with More Than One Operation Answers

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Which shows the algebraic representation of the phrase and its value when ? “twenty-eight plus the product of five and a number”

Question illustration
A
; when the value is 7
Option A
B
; when the value is 49
Option B
C
; when the value is 112.6
Option C
D
; when the value is 122.6
Option D
5

Which description can be written as the expression ?.

Question illustration
A
the difference of six times a number and five
B
the sum of six times a number and five
C
the quotient of six times a number and five
D
the product of six times a number and five
6

Which algebraic expression means “three more than a number squared”?

A
2 n + 3
Option A
B
2 n minus 3
Option B
C
n squared + 3
Option C
D
n squared minus 3
Option D
7

Which expression has a value of 15 when ?

Question illustration
A
43 minus 5 n
Option A
B
3 n minus 5
Option B
C
6 n minus 28
Option C
D
19 minus StartFraction 28 Over n EndFraction
Option D
9

Ahmed doubled his savings, then deposited another hundred dollars. Let s represent the amount he originally had in savings. Which shows an expression to represent his current amount and the current value of his account if ?

Question illustration
A
; when the latest balance of Ahmed’s savings is $140
Option A
B
; when the latest balance of Ahmed’s savings is $260
Option B
C
; when the latest balance of Ahmed’s savings is $6,480
Option C
D
; when the latest balance of Ahmed’s savings is $6,500
Option D
10

Which expression has a value of 16 when ?

Question illustration
A
StartFraction 25 Over n EndFraction + 7
Option A
B
30 minus 3 n
Option B
C
7 + StartFraction 45 Over n EndFraction
Option C
D
n cubed minus 114
Option D

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