a)i) 1/4
- 3/12. In its simplest form, this is 1/4
a)ii) 0.25
- Convert to a decimal = 0.25
b) i) See below
b) ii) 80%
a) i) 31°
W = 180 – 107 – 42 = 31
180° in a straight line
a)ii) Reason is 180 in a straight line so its 180 less 107 less 42 to give the missing angle
b) x = 52°; y= 47°
For x…given JKL & MKN are straight lines, opposite angles in this set up are equal. Hence x = 52
For y….180 – 52 – 81 = 47°
a) 0.03
b) 7
If 7.50 or above, then rounds to 8. Between 6.500 and 7.499, rounds to 7
c) 0.75
d) 0.07; 0.14; 0.306; 0.35; 0.4
e) 31/100
Remember 1.00 is 100% is 1/1. So 0.5 is 50% is 50/100. Work from there
a) Cardiff
b) -8C
If temperature had fallen by 5C in London by midnight, temperature would now be -3-5 = -8
c) 3C
2 – -1
a) Equilateral Triangle
b) Octagon
c) a,c,d,e,h,i
a) 40%
12 toffee = 60%.
8/20 are not toffees
a) 2
Mode is the most common number
b) 15
Range is highest – lowest
c) 4
Mean = Average. Add up all of the numbers and divide by the number of instances
40/10
a) 8.23
b) 1 hour 35 mins
08:45 – 09:00 = 00:15
09:00 – 10:00 = 01:00
10:00 – 10:20 = 00:20
Total time is 0.15 + 1.00 + 0.2 = 1hour 35mins
a) 20mins
Use HCF & LCM. Work on the normal basis that 3 is 1/3 of 9. So if 9km = 1 hour, 3km = 1/3rd of 1 hour
b) 2km
1/4 of the 8km/h = 15mins. So this is 2km
72cm
(15 * 4) + (3*4) = 60 + 12
