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2 years ago

How many three-fourths are in 3?

Mathematics

1 answer:

Citrus2011 [14]2 years ago

8 0

The answer is 4. .75x 4= 3

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In the piece-wise function graphed below, which is the correct equation for when

Sophie [7]

Answer:

y= 3x+5

Step-by-step explanation:

I took the test and got a 90%.

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3 years ago

An airplane is flying from New York City to Los Angeles. The distance it travels in miles, d, is related to the time in seconds,

ICE Princess25 [194]

Answer:

Q: How long will it take to go 12.75 miles?

A: 85 seconds

Step-by-step explanation:

0.15/ 12.75 = 85

<em>Sorry,I don't know how to answer the first question(How fast is it flying?)</em>

<em>Hoped this helped though in some way</em>

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2 years ago

Need help with this

Vlad1618 [11]

Answer:

Step-by-step explanation:

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3 years ago

Greg has to carry 191 apples from a farm to the market. how many baskets will need, given that each basket can hold 42 apples?

soldi70 [24.7K]

191 / 42 = 4.5.....so Greg is gonna need 5 baskets....but the last basket is only gonna be half full.

8 0

2 years ago

Need help pls<br>thank you in advance

ira [324]

Answer:

<u />

$\textsf{Mean}\:\overline{X}=\sf \dfrac{\textsf{sum of all the data values}}{\textsf{total number of data values}}$

$\implies \sf Mean\:(Nilo)=\dfrac{5+6+14+15}{4}=\dfrac{40}{4}=10$

$\implies \sf Mean\:(Lisa)=\dfrac{8+9+11+12}{4}=\dfrac{40}{4}=10$

<h3><u>Standard Deviation</u></h3>

$\displaystyle \textsf{Standard Deviation }s=\sqrt{\dfrac{\sum X^2-\dfrac{(\sum X)^2}{n}}{n-1}}$

$\begin{aligned}\displaystyle \textsf{Standard Deviation (Nilo)} & =\sqrt{\dfrac{(5^2+6^2+14^2+15^2)-\dfrac{(5+6+14+15)^2}{4}}{4-1}}\\\\& = \sqrt{\dfrac{482-\dfrac{40^2}{4}}{3}}\\\\& = \sqrt{\dfrac{82}{3}}\\\\& = 5.23\end{aligned}$

$\begin{aligned}\displaystyle \textsf{Standard Deviation (Lisa)} & =\sqrt{\dfrac{(8^2+9^2+11^2+12^2)-\dfrac{(8+9+11+12)^2}{4}}{4-1}}\\\\& = \sqrt{\dfrac{410-\dfrac{40^2}{4}}{3}}\\\\& = \sqrt{\dfrac{10}{3}}\\\\& = 1.83\end{aligned}$

<h3><u>Summary</u></h3>

Nilo has a mean score of 10 and a standard deviation of 5.23.

Lisa has a mean score of 10 and a standard deviation of 1.83.

The <u>mean</u> scores are the <u>same</u>.

Nilo's standard deviation is higher than Lisa's. Therefore, Nilo's test scores are more <u>spread out</u> that Lisa's, which means Lisa's test scores are more <u>consistent</u>.

5 0

1 year ago