9 Rates, Ratios, Factrising, Expanding and Trigonometry

Question 1

HCF between 30, 60, 150

Accepted Answer

30

Question 2

How long to travel 500miles at an average of 230miles/hr? (Approximately)

Accepted Answer

2 hours and 10 minutes

Question 3

If 5kg cost $14.95, How much for 1kg?

Accepted Answer

$2.99

Question 4

Simplify the ratio 4:12:28

Accepted Answer

1:3:7

Question 5

Which Trigonometry Rule would you use to solve this?

Accepted Answer

Pythagoras

Question 6

HCF For 9y and 15y

Accepted Answer

3y

Question 7

Factorise 16xy-48x2

Accepted Answer

16x(y-3x)

Question 8

Which of the following is NOT a way to check if two triangles are similar?

Accepted Answer

ASA

Question 9

300km in 1.5hrs (Average Speed)

Accepted Answer

200km/hr

Question 10

Which Trigonometry Rule would you use to solve this?

Accepted Answer

Sine

Question 11

Which Trigonometry Rule would you use to solve this?

Accepted Answer

Tangent

Question 12

Which Trigonometry Rule would you use to solve this?

Accepted Answer

Cosine

Question 13

Which Trigonometry Rule would you use to solve this?

Accepted Answer

Tangent

Question 14

Which Trigonometry Rule would you use to solve this?

Accepted Answer

Pythagoras

Question 15

$70 separated into a ratio of 2:4:1

Accepted Answer

$20:$40:$10

Question 16

Simplify 12:9

Accepted Answer

4:3

Question 17

Factorise -6p-15p2

Accepted Answer

-3p(2+5p)

Question 18

A triangle has 180o, if the angles are in a ratio of 1:4:1, what are the angles?

Accepted Answer

30o:120o:30o

Question 19

Expand 3(2x+3)

Accepted Answer

6x+9

Question 20

Expand (x+1)2

Accepted Answer

x2+2x+1

Questions 20