1)

a) 72 m

b) 600 m

c) 66

2)

a) 9 cm^{2}

b) 40 m cm^{2}

c) 36 cm^{2}

3) a = 60

4

A) c = 4

B) c = 52

5) p = 1265

**Working**

**Questions**

1) The formula below works out the distance travelled.

d = s x t

Where d is distance (in metres), s is speed (in metres per second) and t is time (in seconds). What is the distance covered when:

a) s is 8 m/s and t is 9 seconds

b) s is 20 m/s and t is 30 seconds

c) s is 5.5 m/s and t is 12 seconds

2) We can work out the area of a triangle by using the following formula:

Area of triangle = ½ x base x height

Work out the area of the triangle when:

a) the base is 3 cm and the height is 6 cm

b) the base is 8 cm and the height is 10 cm

c) the base is half the length of the height and the height it 12 cm

3) We have the formula below:

d = s x t

Where d is distance (in metres), s is speed (in metres per second) and t is time (in seconds). What is the distance covered when:

a) s is 8 m/s and t is 9 seconds

b) s is 20 m/s and t is 30 seconds

c) s is 5.5 m/s and t is 12 seconds

2) We can work out the area of a triangle by using the following formula:

Area of triangle = ½ x base x height

Work out the area of the triangle when:

a) the base is 3 cm and the height is 6 cm

b) the base is 8 cm and the height is 10 cm

c) the base is half the length of the height and the height it 12 cm

3) We have the formula below:

a = b^{2} + 7b

Find the value of a when b is 5.

4) We have the formula below.

c = d^{3} – 4d^{2} + 7d – 8

Find the value of c when:

a) d is 3

b) d is 5

5) We have the formula below (you may use a calculator for this question).

p = 4nq + 5n^{2} – 15nq^{2} + 7n^{2}q^{3}

Find the value of p when n is 5 and q is 2.