Mathematics: Alexa has a total of 18 pens. 12 of the pens are blue, and the rest are black. What is the ratio of black pens to blue pens. Simplify in possible

Alexa has a total of 18 pens. 12 of the pens are blue,

Ответ:

carolinamleal04

16.03.2022

Mathematics

Step-by-step explanation:

so the anwser is 6:12 BECAUSE 12 ARE BLUE AND THE REST ARE BLACK SO 18 -12 IS 6 SO 6:12 BUT SIMPIFIED ITS 1:2

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Ответ:

lrnnwb

29.11.2021

Mathematics

$\bf h=-15cos\left( \frac{2\pi }{5}t \right)\qquad \boxed{h=8}\qquad 8=-15cos\left( \frac{2\pi }{5}t \right)
\\\\\\
\cfrac{8}{-15}=cos\left( \frac{2\pi }{5}t \right)\implies cos^{-1}\left( \frac{8}{-15}\right)=cos^{-1}\left[ cos\left( \frac{2\pi }{5}t \right) \right]
\\\\\\
cos^{-1}\left( \frac{8}{-15}\right)=\cfrac{2\pi }{5}t\implies \cfrac{5}{2\pi }\cdot cos^{-1}\left( \frac{8}{-15}\right)=t\\\\
-------------------------------$

$\bf cos^{-1}\left( \frac{8}{-15}\right)=\stackrel{radians}{\stackrel{II~quadrant}{\approx 2.13}~~,~~\stackrel{III~quadrant}{\approx 4.15}}\qquad \qquad 
t=
\begin{cases}
\frac{5}{2\pi }\cdot 2.13\\\\
\frac{5}{2\pi }\cdot 4.15
\end{cases}$

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Alexa has a total of 18 pens. 12 of the pens are blue, and the rest are
black. What is the ratio of black pens
to blue pens. Simplify in possible

Ответ:

Ответ:

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