Notes:
Question 1 a) Hexagon
b) 3
Question 2 a) i. 3
ii. 5
iii. 23
my answers:
b) if you square root 55. There won't be a whole number.
Question 3. 1/4 = 0.25 = 25%
7/100 = 0.07 = 7%
13/10 = 1.3 = 130%
Question 4 a) I. 23
ii. add 5
b) the term in the sequence end with a 3 or 8
Question 5) a) L,M.N /L,N,M/ M,L,N/M,N,L/ N,L,M/N,M.L
b) 4/6
Question 6 a) 12x + 8
b) 3( c -2d)
Question 7) 8+9+14+11 = 42
answer: 42
Question 8) extra hours = 42 -35 = 7
£9.40 x 1.25 = £ 11.75
paid = (9.40 x 35) + (11.75 x 7) = £411.25
answer = £411.25
Question 9) Mike drinks = 7 x 2/5 = 2.8L
£4.40 + £2.60 = £7
answer : £7
Question 10)
12 - 9 = 3
12 - oldest , 3- youngest
6.4 x 5 = 32
12 + 6 + 3 = 21
32 - 21 = 11
11 = 7+4
answer = 3,4,6,7,12
question 11)
a) Rotation 90* clockwise centre (0,0)
b) I. watch a video
ii. watch a video
Question 12)
Jack : 87% of 520kg = 452.4 kg
Alex : 61% of 750kg = 457.5kg
457.5kg - 452.4kg = 5.1kg
answer: Alex by 5.1kg
Question 13)
Area of a circle = pi x r to the power of 2
pi x 14 to the power of 2 = 615.7
Question 14)
a) I. 360
ii. 356.1
b) I. 4
ii. 8
Question 15)
a) 90 minutes = 1.5 hour
distance = speed / time
anna: D = 6km/hr x 2hr = 12km
Paddy: s = 12km / 1.5 hour = 8km/hour
answer: 8
b) the stopping time would have been counted as its an average for the race.
Question 16)
0.85 x 620 = 520
answer: 520
question 17)
a) 10
b) watch ayt video
c) y = -3x + 11
question 18)
square root 12 to the power of 2 + 18 to the power of 2
answer: 21.6
Question 19 )
a) 5 / 3+4+5 x 1/3
answer: 5/36
b) 4000
Question 20 )
a) 770 / 60 = 12.8
b) the highest number may not have been 40
Question 21 )
5s + 4j = 163
3s + 2j = 89
answer: cost of one shirt = 5
cost of one jumper = 22
Question 22)
25000 x (1.02) to the power of 5
answer: £2602.02
Question 23)
a)
multiples of 18 = 18,36,54,72,90,108,126,144,162,180
multiples of 20 = 20,40,60,80,100,120,140,160,180
Lcm = 180 minutes
8:37 + 180 minutes = 11:37
answer: 11:37
b) there are no delays
Question 24)
Question 25)
x + 7 + x + 2(7 + x)= 57
x + 7 + x + 14 + 2x = 57
x + x +2x = 4x
14 + 7 = 21
4x + 21 = 57
57 - 21 = 36
4x = 36
x = 9
answer: ayesha age - 9
bennie age - 16
chloe age - 32
My answers:
Question 1)
a) Triangle
b) 3
Question 2)
a) I. 7
ii. 5
iii. 23
b) if you square root 55 will you net get a whole number.
Question 3)
13/10
Question 4)
a) I. 23
ii. add 5
iii. the sequence usually ends with 3 or 8
Question 5)
b) 4/6
Question 7)
11 + 14 + 7 + 18 = 42
Question 8)
42 - 35 = 7
9.4 x 1.25 = 11.75
(9.4 x 35) + ( 11.75 x 7 ) = 411.25
Question 9)
2/5 x 7 = 2.8l
4.40 + 2.60 = 7
Question 10 )
10 - 9 = 3 x 12 - 9 = 3
10 - oldest and 3 is the youngest x 12 is the oldest and 3 is the youngest
6.4 x 5 = 32
12 + 6 + 3 = 21
32 - 21 = 11
7+ 4 = 11
3,4,6,7,10 x 3,4,6,7,12
Question 11)
a) Rotation clockwise 90 degrees (0,0) x Rotation 90 degrees clockwise centre (0,0)
Question 12 )
87% of 520 = 524.6kg
61% of 750 =575.5kg
575.
marked the rest on my book