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swat32
3 years ago
6

4 2/5 - 1 7/10 2 3/10 2 7/10 3 1/10 2 9/10

Mathematics
2 answers:
elena-s [515]3 years ago
3 0
<span>4 2/5 - 1 7/10
= </span><span>4 4/10 - 1 7/10
= 3</span> 14/10 - 1 7/10
= 2 7/10

answer
<span>2 7/10</span>
Mars2501 [29]3 years ago
3 0
Hello,


<span>4 2/5 - 1 7/10
= </span><span>4 4/10 - 1 7/10
= 3</span> 14/10 - 1 7/10
= 2 7/10

Hope this helps
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Suppose there is a 1.2 Fahrenheit drop in temperature for every thousand feet that an airplane climbs into the sky if the temper
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9514 1404 393

Answer:

  58.7 °F

Step-by-step explanation:

At 5000 feet, the airplane is 5 times 1000 feet above the ground, so the temperature will have dropped 5 times 1.2 °F.

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3 years ago
Orange M&amp;M’s: The M&amp;M’s web site says that 20% of milk chocolate M&amp;M’s are orange. Let’s assume this is true and set
SOVA2 [1]

Answer:

The correct option is (A).

Step-by-step explanation:

Let <em>X</em> = number of orange  milk chocolate M&M’s.

The proportion of orange milk chocolate M&M’s is, <em>p</em> = 0.20.

The number of candies in a small bag of milk chocolate M&M’s is, <em>n</em> = 55.

The event of an milk chocolate M&M being orange is independent of the other candies.

The random variable <em>X</em> follows a Binomial distribution with parameter <em>n</em> = 55 and <em>p</em> = 0.20.

The expected value of a Binomial random variable is:

E(X)=np

Compute the expected number of orange  milk chocolate M&M’s in a bag of 55 candies as follows:

E(X)=np

         =55\times 0.20\\=11

It is provided that in a randomly selected bag of milk chocolate M&M's there were 14 orange ones, i.e. the proportion of orange milk chocolate M&M's in a random bag was 25.5%.

This proportion is not surprising.

This is because the average number of orange milk chocolate M&M’s in a bag of 55 candies is expected to be 11. So, if a bag has 14 orange milk chocolate M&M’s it is not unusual at all.

All unusual events have a very low probability, i.e. less than 0.05.

Compute the probability of P (X ≥ 14) as follows:

P(X\geq 14)=\sum\limits^{55}_{x=14}{{55\choose x}0.20^{x}(1-0.20)^{55-x}}

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The probability of having 14 or more orange candies in a bag of milk chocolate M&M’s is 0.1968.

This probability is quite larger than 0.05.

Thus, the correct option is (A).

4 0
3 years ago
The driving distance from Alex's house to the museum is 6 7/10 miles. What is the round-trip distance?
lions [1.4K]
Round trip is going there and back so it is 2*(6 7/10)=12 14/10=13 4/10=14 2/5
7 0
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Answer:

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step 1

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step 3

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2y=6+2

2y=8

<h2>y=4</h2>
8 0
1 year ago
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