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### Percentages: Review

Part 1:
Please review the topic on Percentages from ACE Learning focusing on the following areas:

 Percentage

Part 2:
Complete the following questions:

Question 10

1. \$0.20(8000) = \$1600
\$1600(98%) = \$1568 (a)

\$0.25 -\$0.20 = \$0.05

0.05/0.20 (100) = 25% (b)

8000(\$0.25) = \$2000
\$2000(100-x)% (c)

(\$2/3(1500-6x))X8000=8000(\$100-4x)= \$(800000-32000x)

\$(800000-32000x) -\$2000(100-x)%=\$(800000-32000x-2000(100-x)%)

2. (a)20x8000=160000
160000x98%=156800//

(b)25-20=5
5/20x100%=25%

(c) (8000x25)xX%

(d)(1000-4x)-2000x=1000-2004x

3. a)\$1568
b)25%
c)2000-(2000)(x)
d)(2000-2000x)-(1000-4x)

4. a)\$1568
b)25%
c)(2000(100-x))%
d)(200000-2000x)-(1000-4x)

5. a) 20 X 8000 = 160 000
100 - 2 = 98
98% X 160 000 = 156 800

b) 25-20=5
5/20 X 100 = 25%

c)
x% X (25X8000)
= x% X 200 000
= x X 2000
= 2000x
Ans: \$(2000x)

d)
2/3 X (1500-6x)
= 2 X (500-2x)
= 1000 - 4x
Total Cost in 2006 -> \$(1000-4x)
Total Cost in 2005 -> \$(2000x)
Increase-> (1000-4x) - (2000x) = 1000-2004x

6. a) 98/100 x 0.2(8000)= 1568
Ans: \$1568
b) 5/25 x 100 = 20%
c) x/100 X 200= 2x
d) 1000-2x

7. a) \$1569
b) 25%
c) \$2000x
d) (200000-2000x)-(1000-4x)

8. a.1568
b.25%
c.(100% - x%) /100 x 8000
d(.1000-4x)-(2000x) = 1000 - 2004x

9. a. \$1568
b. 25%
c. 2000-2000x
d. 2000-2000x-1000+4x
= 1000-1996x