KERJA ADDMATH

Algebraic Formulae
1. Given
p
r
q
= 2r, then q =
8.
2. Given n
m – m = 7, then m =
3. Given 3a 2 = 5d – 7c, then c =
4. Given A = r 2 . If A = 154 and
5.
= 7
22 , find the value of r.
The diagram shows an isosceles
triangle PQR. If the perimeter of
the triangle is p, then p =
a
9. Given that b = , express c as
1 c
the subject of the formula.
10. If v 2 = u 2 + 2as, find the value of
v when u = 8, a = 2 and s = 9.
In the diagram, PQRS is a
rectangle. If the area of the
shaded part is y cm 2 , write a
formula to relate x and y.
3k
6. Given F = . If F = 4 and
p
p = 81, find the value of k.
7. Given
subject.
t
y
2
= 7, make y as the
1
11. Given that x =
1
terms of x.
y
y
, express y in
12. Given that 3y – q = p + 2y,
express y in terms of p and q.
13. Given that c = 9
5 (F – 32), find
the value of F if c = 30.
1 1 1
14. Given + = , find the
u v f
value of u when f = 15 and v =
20.
15. Ali’s body mass is M kg.
Chong’s body mass is N kg.
Given that Chong is 5 kg heavier
than Ali, write a formula to relate
M and N.