Linear and Simultaneous Equations
45.
Given that
,
(a) Find the value of when , and .
(a) Find the value of when , and .
(a) ......................... [2]
(b) Make
the subject of the formula.
(b) ......................... [2]
Paper 2
46.
(a) Solve:
(a) y = ......................... [2]
(b) Solve the simultaneous equations:
(b) x = ......................... y = ......................... [3]
Paper 2
47.
(a) Make
the subject of the formula:
(a) ......................... [2]
(b) Solve:
(b) y = ......................... [3]
Paper 2
48.
Given
and
.
(a) Calculate the value of .
(a) Calculate the value of .
(a) ......................... [3]
(b) Find the values of
and
.
(b) n = ......................... m = ......................... [3]
Paper 2
49.
,
(a) Find the value of when and .
(a) Find the value of when and .
(a) ......................... [1]
(b) Make
the subject of the formula.
(b) ......................... [3]
(c) Write a condition for
so that
is a real number.
(c) ......................... [1]
Paper 2
50.
Solve:
(a)
(a)
(a) ......................... [2]
(b)
(b) p = ......................... q = ......................... [3]
(c)
(c) t = ......................... or t = ......................... [2]
Paper 2
51.
(a)
(i) Find when , and .
(i) Find when , and .
(a)(i) ......................... [2]
(ii) Make
the subject of the formula.
(a)(ii) ......................... [3]
(b) Find
and
if
,
and
.
(b) x = ......................... y = ......................... [3]
Paper 2
52.
Solve the simultaneous equations:
x = ......................... y = ......................... [3]
Paper 2
53.
Given that
,
find the numerical value of
.
......................... [2]
Paper 2
54.
Solve the simultaneous equations:
x = ......................... y = ......................... [2]
Paper 2
55.
Given that
,
find the value of
.
k = ......................... [2]
Paper 2
56.
(a) Solve for
:
(a) t = ......................... [2]
(b) Solve the simultaneous equations:
(b) x = ......................... y = ......................... [3]
Paper 2
57.
Solve the following equations:
(a)
(a)
(a) x = ......................... [2]
(b)
(b) x = ......................... [2]
(c)
(c) x = ......................... y = ......................... [3]
Paper 2
58.
Given that
,
make
the subject of the formula.
......................... [3]
Paper 2
59.
Solve the simultaneous equations:
x = ......................... y = ......................... [3]
Paper 2
26.
Factorise
.
......................... [1]
Paper 4
27.
(i) Find R when R1 = 4 and R2 = 6.
R = ......................... [2]
(ii) Make R2 the subject of the formula.
R2 = ......................... [3]
Paper 4
28.
Solve the equation
.
x = ......................... or x = ......................... [5]
Paper 4
29.
(a) Make p subject of the formula.
p = ......................... [2]
(b) Express as a single fraction in its simplest form.
......................... [3]
(c) Solve.
x = ......................... y = ......................... [3]
Paper 4
30.
Solve.
(a)
(a)
......................... [2]
(b)
x = ......................... y = ......................... [3]
Paper 4
31.
(a) Rearrange the formula to make a the subject.
a = ......................... [3]
(b) Factorise fully.
......................... [3]
(c) Simplify.
(i)
(i)
......................... [3]
(ii)
......................... [3]
Paper 4
32.
(i) Find the value of P when c = 4, m = 2 and t = −3.
P = ......................... [2]
(ii) Make t the subject of the formula.
t = ......................... [3]
Paper 4
33.
(a) (i) Factorise completely
.
......................... [2]
(ii) Hence, or otherwise simplify
.
......................... [2]
(b) Given that
and
,
find the value of
.
[3]
Paper 4
34.
Solve the equations:
(i) ,
(i) ,
x = ......................... [2]
(ii)
,
x = ......................... or x = ......................... [2]
(iii)
,
giving your answer to 3 decimal places.
x = ......................... or x = ......................... [4]
Paper 4
35.
(a) Solve the equation.
x = ......................... or x = ......................... [2]
(b) Factorise completely.
......................... [2]
(c) Express as a single fraction in its simplest form.
Show all your working.
Show all your working.
......................... [3]
Paper 4
36.
(a) Simplify,
......................... [2]
(b) Make a the subject of the formula.
a = ......................... [2]
(c) Simplify fully.
......................... [3]
(d) Solve
.
x = ......................... or x = ......................... [4]
Paper 4