8 Maths Challenge

Question 1

If the shape shown is translated by (-4, 3) where does A end up?

Accepted Answer

(1, 8)

Question 2

Using the graph, during which month shown were the profits highest?

Accepted Answer

April

Question 3

3 x (-2)2

Accepted Answer

12

Question 4

What is the decimal equivalent of 85%?

Accepted Answer

0.85

Question 5

State the value of a.

Accepted Answer

25

Question 6

If a taxi company charges $4/km and a $10 flat fee for a trip, write an equation to show this.

Accepted Answer

Cost = 4d + 10

Question 7

Which rule can be used to prove congruence?

Accepted Answer

SAS

Question 8

If -2(4u - 5) = 34, what is the value of u?

Accepted Answer

-3

Question 9

Express this ratio in simplest form: 5mm to 2cm

Accepted Answer

1:4

Question 10

A line has the equation y = 4x - 2. What is it's gradient?

Accepted Answer

4

Question 11

Simplify: 7ab x 2bc x 3a

Accepted Answer

42a2b2c

Question 12

If y = 3x - 2, state the value of x when y = 7

Accepted Answer

3

Question 13

Calculate the area of this traingle.

Accepted Answer

39cm2

Question 14

Solve the fraction equation shown in this photo:

Accepted Answer

9/10

Question 15

State the value of c.

Accepted Answer

106

Question 16

If 4 doughnuts cost $12, how much would 10 doughnuts cost?

Accepted Answer

$30

Question 17

Calculate the % change when $25 becomes $32.

Accepted Answer

28%

Question 18

Calculate the value of a.

Accepted Answer

135

Question 19

What is the range of the data set: 3, 4, 6, 6, 7, 7, 8, 10

Accepted Answer

7

Question 20

Fully simplify the fraction shown:

Accepted Answer

u/30p

Question 21

Cordial is mixed in the ratio 1:4 and there is 500mL of liquid in a cup, how much is cordial?

Accepted Answer

100mL

Question 22

If a = 3 and b = -2, what is the value of a + 3b?

Accepted Answer

-3

Question 23

State the equation of this line:

Accepted Answer

y = 2x + 3

Question 24

Calculate the area of this circle.

Accepted Answer

314km2

Question 25

Calculate the volume of this rectangular prism?

Accepted Answer

24 000cm3

Question 26

On a quiz, students were asked if they liked hard copy or kindle books. How many said kindle?

Accepted Answer

27

Question 27

Which rule can be used to prove congruence?

Accepted Answer

AAS

Question 28

If you toss a coin twice, what is the chance that you get 2 heads?

Accepted Answer

1/4

Question 29

(-3) - (+2) =

Accepted Answer

-5

Question 30

Expand the bracket: -2(-3x + 4)

Accepted Answer

6x - 8

8 Maths Challenge

Questions 30

8 Maths Challenge

Questions 30