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Algebraic Expressions II - JSS2 Mathematics Past Questions and Answers - page 1

1

Which of the following is a monomial denominator?

A

๐‘ฅ+3

B

4๐‘ฆ

C

๐‘ฅโˆ’1

D

2๐‘ฅ+5

correct option: b
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2

Express the number of apples each person gets if Sarah has 2๐‘ฅ+3 apples divided among 5 people.

A

2๐‘ฅ+3/4

B

2๐‘ฅ+3/5

C

2๐‘ฅ+3

D

2๐‘ฅ/3+5

correct option: b
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3

If John has ๐‘ฅ apples, how many apples does Sarah have if she has 3 more than twice John's apples?

A

3๐‘ฅ+3

B

2๐‘ฅโˆ’3

C

2๐‘ฅ+3

D

๐‘ฅ+3

correct option: c
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4

Find the time taken for a car traveling at ๐‘ฅ miles per hour to cover 100 miles.

A

100๐‘ฅ

B

๐‘ฅ/100

C

100/๐‘ฅ

D

100+๐‘ฅ

correct option: c
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5

If a rectangle's width is ๐‘ค and its length is 3๐‘ค+4, what is the perimeter?

A

6๐‘ค+4

B

8๐‘ค+8

C

3๐‘ค+8

D

6๐‘ค+8

correct option: b
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6

Simplify: 10๐‘ฅ^2+5๐‘ฅ/5๐‘ฅ

A

10๐‘ฅ+5

B

2๐‘ฅ^2+๐‘ฅ

C

10+5๐‘ฅ

D

2๐‘ฅ+1

correct option: d
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7

Which expression represents "3 more than twice a number ๐‘ฆ"?

A

2๐‘ฆ+3

B

3๐‘ฆ+3

C

2+3๐‘ฆ

D

๐‘ฆ+6

correct option: a
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8

Express the simplified form of 12๐‘ฅ^2/4๐‘ฅ

A

12๐‘ฅ

B

3๐‘ฅ

C

4๐‘ฅ

D

3๐‘ฅ^2

correct option: b
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9

Simplify the expression: 6๐‘ฅ^2/3๐‘ฅ

6๐‘ฅ^2/3๐‘ฅ

=6โ‹…๐‘ฅโ‹…๐‘ฅ/3โ‹…๐‘ฅ

=6/3 โ‹… ๐‘ฅ^2/๐‘ฅ

=2๐‘ฅ

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10

Simplify the expression: 8๐‘ฅ^3+4๐‘ฅ/2๐‘ฅ

First, factor out 2๐‘ฅ from the numerator:

8๐‘ฅ^3+4๐‘ฅ/2๐‘ฅ

=2๐‘ฅ(4๐‘ฅ2+2)2๐‘ฅ

=4๐‘ฅ^2+2

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