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Tanya [424]
4 years ago
11

Tell me the answer for 11 plz thanks if you did

Mathematics
2 answers:
irga5000 [103]4 years ago
8 0
1 : 24
2:48
5:120
expression: p(24) or p x 24
a. p= 2.5
2.5 x 24 or 2.5(24) = 60

b. 108 = p(24)
divide both sides by 24 to get p alone
108 ÷ 24 & p ÷ 24
nlw you have
p = 108÷24
p = 4.5 or 4 and a half hours
aleksandr82 [10.1K]4 years ago
6 0
2 Hours-$48
5 Hours-$120
A) Not sure sorry...
B) 4 1/2 Hours
~Silver
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Four times a number minus twice another number is -16. The sum of the two numbers is -1. Find the numbers
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2 and -3

Step-by-step explanation:

Let the numbers be x and y ∴ 4x -2y =-16......................Eqn 1

and x+y=-1.................................Eqn 2

this ⇒x=-1-y. Substitute the value of x to be=-1 -y and putting in Eqn 1 yields the following 4(-1-y)-2y =-16 0r -4-4y-2y=-16

⇒-4-6y=-16 0r =-6y=-12 ∴y is 2

⇒ and x is -3

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In right △ABC , the right angle is at C, m∠A=30∘ , and AC=5√ 5 units.
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Step-by-step explanation:

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6 0
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The number of newly reported crime cases in a county in New York State is shown in
JulsSmile [24]

Answer:

The linear regression equation that represents  the set of data is:

y=1083.48+23.73x

The predicted number of new cases for 2013 is 1368.

Step-by-step explanation:

The general form of a linear regression is:

y=a+bx

Here,

<em>y</em> = dependent variable

<em>x</em> = independent variable

<em>a</em> = intercept

<em>b</em> = slope

Compute the values of <em>a</em> and <em>b</em> as follows:

\begin{aligned}        a &= \frac{\sum{Y} \cdot \sum{X^2} - \sum{X} \cdot \sum{XY} }{n \cdot \sum{X^2} - \left(\sum{X}\right)^2} =             \frac{ 6857 \cdot 55 - 15 \cdot 17558}{ 6 \cdot 55 - 15^2} \approx 1083.476 \\ \\b &= \frac{ n \cdot \sum{XY} - \sum{X} \cdot \sum{Y}}{n \cdot \sum{X^2} - \left(\sum{X}\right)^2}        = \frac{ 6 \cdot 17558 - 15 \cdot 6857 }{ 6 \cdot 55 - \left( 15 \right)^2} \approx 23.743\end{aligned}

The linear regression equation that represents  the set of data is:

y=1083.48+23.73x

Compute the predicted value of the number of new cases for 2013 (i.e. <em>x</em> = 12) as follows:

y=1083.48+23.73x

  =1083.48+(23.73\times12)\\\\=1083.48+284.76\\\\=1368.24\\\\\approx 1368

Thus, the predicted number of new cases for 2013 is 1368.

8 0
3 years ago
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