Pearson Edexcel International GCSE (9–1) · MATHEMATICS A · Unit
Unit 4
104 practice questions
Topics covered
Practice questions
21–30 of 104
Question 21
2 marks · Easy
Answer and see the solution →Calculate the value of when , and .
Question 22
2 marks · Easy
Answer and see the solution →Solve the equation .
Question 23
1 mark · Easy
Answer and see the solution →Simplify the expression: .
Question 24
2 marks · Normal
Answer and see the solution →Write down whether each of the following is an expression, an equation, or an identity. (i) 5y + 6 (ii) 7x − 2 = 3 (iii) 2(a + 1) = 2a + 2
Question 25
2 marks · Normal
Answer and see the solution →Simplify the expression: 3(x + 5) − 2(x − 4)
Question 26
2 marks · Normal
Answer and see the solution →Solve the equation 5y − 4 = 26.
Question 27
4 marks · Normal
Answer and see the solution →A rectangle has base cm and height cm. Its area is given by .
(a)[1 mark]Calculate the area when and .
(b)[2 marks]Find when and .
(c)[1 mark]Make the subject of the formula for area.
Question 28
2 marks · Normal
Answer and see the solution →Solve the equation .
Question 29
2 marks · Normal
Answer and see the solution →The area of a triangle with base and height is given by . Find if and .
Question 30
2 marks · Normal
Answer and see the solution →Make the subject of the equation .