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Test: Expressions and Formulae - Year 9 MCQ


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10 Questions MCQ Test Year 9 Mathematics (Cambridge) - Test: Expressions and Formulae

Test: Expressions and Formulae for Year 9 2024 is part of Year 9 Mathematics (Cambridge) preparation. The Test: Expressions and Formulae questions and answers have been prepared according to the Year 9 exam syllabus.The Test: Expressions and Formulae MCQs are made for Year 9 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Expressions and Formulae below.
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Test: Expressions and Formulae - Question 1

What is the algebraic expression for "three times a number increased by five"?

Detailed Solution for Test: Expressions and Formulae - Question 1

"Three times a number" translates to 3x, and "increased by five" adds 5 to the expression.

Test: Expressions and Formulae - Question 2

Simplify the expression: 2x + 3x − 4.

Detailed Solution for Test: Expressions and Formulae - Question 2

Combine like terms: 2x + 3x = 5x, then 5x − 4.

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Test: Expressions and Formulae - Question 3

Which formula represents the perimeter of a rectangle with length l and width w?

Detailed Solution for Test: Expressions and Formulae - Question 3

Perimeter of a rectangle is given by  2(l + w), where l is the length and w is the width.

Test: Expressions and Formulae - Question 4

Solve the equation for x: 3x − 7 = 14.

Detailed Solution for Test: Expressions and Formulae - Question 4

Add 7 to both sides, then divide by 3: 3x = 21, x = 7.

Test: Expressions and Formulae - Question 5

Factorize the expression: 4x2 − 9.

Detailed Solution for Test: Expressions and Formulae - Question 5

This is a difference of squares: 4x2 − 9 = (2x − 3)(2x + 3).

Test: Expressions and Formulae - Question 6

What is the solution to 2(3x − 4) = 10?

Detailed Solution for Test: Expressions and Formulae - Question 6

Distribute and solve: 6x − 8 = 10, 6x = 18, x = 3.

Test: Expressions and Formulae - Question 7

Find the value of x in the equation 2/x = 5

Detailed Solution for Test: Expressions and Formulae - Question 7

Cross-multiply and solve: 2 = 5x, x = 2/5 = 1/10.

Test: Expressions and Formulae - Question 8

Express "the sum of twice a number and seven" algebraically.

Detailed Solution for Test: Expressions and Formulae - Question 8

"Twice a number" is 2x, and "sum with seven" is 2x + 7.

Test: Expressions and Formulae - Question 9

Simplify the expression:  3(2x − 5) + 4(3x + 2).

Detailed Solution for Test: Expressions and Formulae - Question 9

Distribute and combine like terms: 6x − 15 + 12x + 8 = 18x − 7.

Test: Expressions and Formulae - Question 10

What is the solution set for x2  − 16 = 0?

Detailed Solution for Test: Expressions and Formulae - Question 10

Factorize and solve: (x − 4)(x + 4) = 0, x = 4, −4.

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