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xxMikexx [17]
3 years ago
7

Select the best answer.

Mathematics
1 answer:
Tanzania [10]3 years ago
7 0

Answer:

E

Step-by-step explanation:

As you need a 47%, you universe of numbers should be form 0 to 99 (or 1 to 100, the important fact is you need 100 numbers). With this, you can discard A and D. You can also discard C, as you need 47 good realizations as you probability is 47%, and C gives you 48 (00 also counts)

You need as many observations as you can, to get a more consistent estimation. This means, as many observations as you can.  You could use B or E, because both have 47 good observations (for u), but E gives you a larger sample.

If you are trying to get a head with 50% throwing a dime, you will, statistically, do better throwing it 47 times than only 10 times.

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9
Mnenie [13.5K]

Answer: n = 75; p = 30

Explanation: (a) 5p + 4n = 450 where p is for pen and n is for notebook.

(b) 10p + 3n = 525

We can use the elimination method to solve these two equations.

1. Multiply the first equation by 2 so that 10p will cancel out:

2(5p + 4n = 450)

- 10p + 3p = 525

10p + 8n = 900

- 10 p + 3n = 525

5n = 375

2. Divide by 5 to get n alone: n = 75

3. Plug 75 into the first equation: 5p + 4(75) = 450

5p + 300 = 450

4. Subtract 300 from 450: 5p = 150

5. Divide by 5 to get p alone: p = 30

We can test if this is correct by plugging our answers into the second equation:

10(30) + 3(75) = 525

300 + 225 = 525

525 = 525

This is a true statement, which means that our answers are correct.

6 0
3 years ago
carter needs to wrap 7 presents. he lays the ribbon out flat and says ,if i nake 6 equally spaced cuts i'll have just enough pie
Andrej [43]
Yes he does. If you cut something 6 times you make 7 pieces
8 0
3 years ago
If I eat 5 skittles in 1/4 (quarter) of a minute, how many skittles can I eat in 1 minute
Cloud [144]

Answer: 20

Step-by-step explanation:

8 0
3 years ago
8000 + 8800 + 8000 + 8 million + 80 trillion + another a katrillion equals
Yuri [45]

Answer:

8,000,802,4800

Step-by-step explanation:

Katrillion isn't a real value but everything else is.

5 0
3 years ago
Tonla is saving $15.00 each week to buy a bicycle. The bicycle costs $129.99. Which inequality can be used to determine the numb
Alex

Answer:

15.00w < 129.99

hope it helps

6 0
2 years ago
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