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3 years ago

Harry searched the pineapple garden for 300 pineapples.

Mathematics

2 answers:

12345 [234]3 years ago

3 0

Answer:

120 pineapples

Step-by-step explanation:

40% = 0.40

300 * 0.40 = 120 pineapples

Mariulka [41]3 years ago

3 0

Answer:

Persuming he actually did get them 300 pineapples the answer would be 180

Step-by-step explanation:

Work out 40% of 300. To do this first find 10% (÷10) so that would mean 300÷10 which is 30. Then work out 40% by Multiplying the answer by 4. (120)
The 120 is the amount of pineapples that were sold. We want the amount left over.
To find out simply do 300 - 120 = 180
So that means Harry has 180 pineapples left after selling 40%

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3 years ago

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Vadim26 [7]

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3 years ago

Which statement compares the numbers correctly?

arsen [322]

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Step-by-step explanation:

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6 0

3 years ago

A 4-digit PIN number is selected. What it the probability that there are no repeated digits?

geniusboy [140]

Answer:

$P(A)=0.504$ or 50.4%

Step-by-step explanation:

The <em>probabilities</em> constitute a branch of mathematics that deals with measuring or quantitatively determining the possibility that an event or experiment produces a certain result. The probability is based on the study of combinatorics and is the necessary foundation of statistics.

A <em>permutation</em> is an ordered arrangement of objects in a group, without repetitions.

A 4-digit PIN is selected. What is the probability that there are no repeated digits?

First, there are only 10 possible values for each digit of the PIN (0, 1, 2, 3, 4, 5, 6, 7, 8, 9). The total possibles 4 PINs are $10^{4} =10000$

There's no repeated numbers and all the four numbers have to be different, which means we have to select 4 numbers out of 10 numbers. Using the permutation equation $nP_{k} =\frac{n!}{(n-k)!}$

$10P_{4} =\frac{10!}{(10-4)!}=10.9.8.7.6= 5040$

So, the probability that there are no repeated digits is:

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$P(A)=\frac{5040}{10000}=0.504$ or 50.4%

5 0

4 years ago