2184 1.5 a) 12 1/4 * 48/1 b) 2 48 * 1/2 = 24. 24 * 1/3 = 8 8 * 1/4 = 2 Remember of in maths means multiply a) 1/8 45/360. Start off with 5 as the highest common denominator. Although there is a higher one So 45/360 would become 9/72 Then 9/72 becomes 1/8 b) 40 Its the usual formula approach for this: 60/360 * 240/1 Then simplify each fraction (so 60/360 becomes 1/6) Revised calculation is 1/6 * 240/1. Cross cancel and then multiply from there. See online videos on Youtube for 123tutors for further guidance c) 450 Football is 135°. So 135/360 * 1200 a) 7 Mode is the most common number. This is 7 b) 8 8+7+11+6+9+7 = 48 48/6 c) 5 Range is highest minus lowest 85p 1/20; 1/5; 1/4; 6/20; 3/2 a) Rhys 30 miles. Sarah 60 miles Work on ratios. Rhys 10:20 Sarah This is 30 parts. So into 90, Rhys gets 30 and Sarah 60 b) 2 hours Given they are travelling towards each other a) 1200mm² Area of rectangle = LxW = 60mm x 20mm b) 40 triangles 2 Triangles will joined together have dimensions of LxW = 12mmx5mm. So they form a rectangle Therefore, in 60mm across, you get 5 “blocks” of 2 triangles. And you can go to a height of 4 blocks So in total 5 * 4 blocks = 20 blocks. 2 triangles per block so 40 triangles c) 1200mm Perimeter of 1 triangle = 12+5+13=30mm Total number of triangles = 40 Total Perimeter =1200mm d) 1.2m 10mm = 1cm 100cm = 1m 1000mm = 1m a) 4 plates BB1, BB2, BB3, BB4 b) 16 Per above * 4 since you have AA1-4,BB1-4,CC1-4,DD1-4 c) 12 AB1,AB3,AC1,AC3,AD1,AD3,BA1,BA3,CA1,CA3,DA1,DA3 d) 3/8 Alphabetical order: AB,AC,AD,BC,BD,CD. Each one has 4 possible plates. So AB1,AB2,AB3,AB4,AC1,AC2 etc Total number of possible plates = 24 24/64 = 3/8 12 1/4 4 parts of 16 shaded = 4/16 = 1/4
