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DiKsa [7]
3 years ago
11

Pls help, because I need it desperately

Mathematics
1 answer:
Dovator [93]3 years ago
6 0

Answer:

1) 13

2) is

3) s/13

Step-by-step explanation:

It’s one adult to 13 students.  It IS proportional.

a=s/13

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In a circle, a 90 degree sector has area of 36pi ftsqd. what is the radius of the circle?
lukranit [14]
\bf \textit{area of a sector of a circle}\\\\
A=\cfrac{\theta \pi r^2}{360}\quad 
\begin{cases}
r=radius\\
\theta =angle~in\\
\qquad degrees\\
------\\
\theta =90\\
A=36\pi 
\end{cases}\implies 36\pi =\cfrac{90\pi r^2}{360}
\\\\\\
\cfrac{36\pi }{90\pi }=\cfrac{r^2}{360}\implies \cfrac{2}{5}=\cfrac{r^2}{360}\implies \cfrac{360\cdot 2}{5}=r^2\implies 144=r^2
\\\\\\
\sqrt{144}=r\implies 12=r
4 0
4 years ago
Convert from feet to yards.<br><br> 6,249 feet = ___ yards
Mashcka [7]

Answer:

2083

Step-by-step explanation:

Every yard is 3 feet so divide 6243 ft by 3 to get your answer

\frac{6249}{3} = 2083

Hope I helped! :)

3 0
2 years ago
Read 2 more answers
Y=4x+rx+6 solve for x
Irina-Kira [14]
y=4x+rx+6 

y-6=4x+rx&#10;&#10;    Subtract \ 6 \ from \ both \ sides 

y-6=x(4+r)&#10;&#10; &#10;    Factor \ out \ the \ common \ term \ x 

\dfrac{y-6}{4+r} =x   Divide \ both \ sides \ by \ 4+r
5 0
3 years ago
What are the x and y-intercepts of the line described by the equation?
sashaice [31]
X intercept= 6.2
Y intercept= 3.1
6 0
3 years ago
Read 2 more answers
123×22 <br>44 ×7<br>110 × 2 ÷10​
Alexeev081 [22]

Answer:

458396400

Step-by-step explanation:

123 x 22 x 44 x 7 x 110 x 5

2706 x 44 x 7 x 110 x 5

2706 x 308 x 110 x 5

2706 x 308 x 550

833448 x 550

458396400

3 0
3 years ago
Read 2 more answers
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