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Naya [18.7K]
3 years ago
14

I need help and I don't understand

Mathematics
2 answers:
Inessa05 [86]3 years ago
8 0
The answer is 1/4 because 1 is 4 / 4 so 4/4-3/4= 1/4
murzikaleks [220]3 years ago
5 0
To answer this question, you must first understand what a fourth is. 1/4 is simply when a one is split into four parts, and you take one of those parts. Imagine you have a pie, and you cut it into four equal pieces. If you take one of those four pieces, you have one fourth of the pie. So if you have three fourths of the pie, you have three pieces out of the four total. This question is basically asking: "If you have three pieces out of four, how many pieces do you need to make one whole pie?"

Therefore, the problem looks like this:

3/4 + ?/4 = 1
and therefore the answer is 1/4 because you only need one fourth to make a whole number.

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Tori ran 4/5 Mile in 1/5 hour. write an equation for the distance in miles Y that she ran in X hours if she ran at a constant ra
nirvana33 [79]

Answer:

y=4x

Step-by-step explanation:

Let

y ----> the distance in miles

x ----> the time in hours

using proportion

\frac{y}{x}=\frac{(4/5)}{(1/5)}

Simplify

\frac{y}{x}=\frac{4}{1}

y=4x

This is a linear direct variation

The unit rate or speed is the slope of the linear equation

The unit rate is 4 miles/hour

6 0
3 years ago
What is the slope of the line that passes through (3,3) (7,6)?
dezoksy [38]

Answer:

3/4 i think

Step-by-step explanation:

3 0
2 years ago
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A moving company had one sixth of a ton weight to move across town. If they wanted to split it equally amongst 4 trips, how much
Vlad [161]
1/24 of a ton.
Hope this helps
3 0
3 years ago
Answer fast!! With explanation pls
Zepler [3.9K]
D is equivalent because brackets don’t change anything here
4 0
2 years ago
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Suppose the number of messages that an inbox receives may be modeled by a Poisson distribution. If the average number of message
docker41 [41]

Answer:

0.36427

Step-by-step explanation:

Mean = λ = 18 messages per hour

P(X = x) = (e^-λ)(λ⁻ˣ)/x!

P(X ≤ x) = Σ (e^-λ)(λ⁻ˣ)/x! (Summation From 0 to x)

But the probability required is that the messages thay come in an hour is between 15 and 20, that is, P(15 < X < 20)

P(15 < X < 20) = P(X < 20) - P(X ≤ 15)

These probabilities will be evaluated using a cumulative frequency calculator.

P(X < 20) = 0.65092

P(X ≤ 15) = poissoncdf(18, 15) = 0.28665

P(15 < X < 20) = P(X < 20) - P(X ≤ 15) = 0.65092 - 0.28665 = 0.36427.

You can use the Poisson distribution calculator here

https://stattrek.com/online-calculator/poisson.aspx

4 0
3 years ago
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