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Uitwerkingen - Pearson Education

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© 9-2-2004, Bedrijfsrekenen voor het hoger onderwijs, ISBN 9070619237, drs. H.J. Ots,<br />

www.webecon.nl<br />

4[b{(b c - c 2 - c} - b] - b =<br />

4[b 2 c - bc 2 - cb - b]- b =<br />

4b 2 c - 4bc 2 - 4cb - 4b -b =<br />

4b 2 c - 4bc 2 - 4bc - 5b<br />

85<br />

86<br />

1<br />

1 - 0,8(1 - 0,4) = 1<br />

1 - 0,8.0,6 = 1<br />

1 - 0,48 = 1<br />

0,52 = 1 12<br />

13<br />

1<br />

1 - 3 4 (1 - 1 5 ) + 1 4 .3 4 (1 - 1 5 ) =<br />

87 a _________________________________________<br />

Bedrag<br />

Percentage<br />

________________________________________<br />

Verandering x 11 %<br />

Oude bedrag € 93,40 100 %<br />

________________________________________<br />

x<br />

€ 93,40<br />

11 %<br />

=<br />

100 %<br />

→ x = 11<br />

100 . € 93,40<br />

x = € 10,27<br />

11 % van € 93,40 is dus<br />

11<br />

100<br />

. € 93,40 = € 10,27<br />

b 6,5 % van € 123,17 = 6,5<br />

100<br />

c 13,9 % van € 71,25 = 13,9<br />

100<br />

. € 123,17 = € 8,01<br />

. € 71,25 = € 9,90<br />

d 4,17 % van € 3.417,69 = 4,17<br />

100<br />

. € 3.417,69 = € 142,52<br />

88 a _____________________________________<br />

Bedrag Percentage<br />

_____________________________________<br />

Verandering € 219 x<br />

8

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