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WITCHER [35]
4 years ago
15

Work out the percentage change to 2 decimal places when a price of £99 is increased to £111.

Mathematics
1 answer:
Basile [38]4 years ago
6 0

Answer:

0.12

Step-by-step explanation:

The percentage change formula depends if the price goes up or down. Since this goes up, we have the positive percentage change formula. This is \frac{ a_n - a_1}{a_1} where a_n is the new price and a_1 is the original price. Plugging in our values, we get \frac{111-99}{99} = \frac{12}{99}  = 0.\overline{12} . Since this is to two decimal places we get 0.12 as our answer.

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The probability that at least two of the missiles hit the arsenal:
P ( x ≥ 2 ) = P ( x = 2 ) + P ( x = 3 )
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Answer:
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3 years ago
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