### answers to year 8 ht2 revision sheet

(my computer wont do powers so where you see "^2" etc it means squared)

Percentages

1 a) 36 b) 7.2 c) 32p

2 a) 38 b) 46 c) 0.24

3 a) 80% b)8% c) 71% d) 171% e)382% f) 3% g) 4% h) 88% i)15%

4 £144

5 £84

Fractions

1 a)0.25, 25% b) 0.075, 7.5% c) 0.27(rounded) 27%

2 a)36 b)6

3a)2/4=1/2 b) 3/8 c) 7/12 d) 19/15 e) 29/35

4 a)6/20=3/10 b)6/35 c) 5/24 d) 9/10

Algebra

1 a) 4x b) 6y-x c) 5x+4 d) 6a^2 e) b^4 f) 6y^3 g) 4x

2 a) 2x+6 b) 3y-3x c) 2b-b^2

3 3x+12+2x+10 = 5x+22

4 a) 10 b) 50 c) 100 d) 5 e) 1.5

Shape

1 a) 9cm2 b) 24cm^2 c) 36cm^2 d) 24cm^2

2 a) 60cm^3 b) 72cm^3

3 a) 94cm^2 b) 132cm^2

## 1 Comments:

Thank you sir, i appreciate it sir. This has helped me alot.:)

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