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Fiesta28 [93]
2 years ago
15

What are the values of x and y? Figure and answers shown below.

Mathematics
2 answers:
pshichka [43]2 years ago
4 0

Answer:

C) x = 8√3 ; y = 4√3

Step-by-step explanation:

In this figure, the triangle is 30°-60° right triangle.

So x/12= 2/√3, y/12 = 1/√3

sleet_krkn [62]2 years ago
4 0

Answer:

C

Step-by-step explanation:

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Step-by-step explanation:

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Find the number if: 4.5% of it is 23% of 45
Usimov [2.4K]
Well, let's say the number is "x", so "x" is the 100%.

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if we take 45 to be the 100%, what is its 23%?

\bf \begin{array}{ccll}
amount&\%\\
\text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\
45&100\\
a&23
\end{array}\implies \cfrac{45}{a}=\cfrac{100}{23}\implies \cfrac{45\cdot 23}{100}=a\implies 10.35=a

ok, well, we know then that 4.5% of "x" is 10.35, we also know that "x" is the 100%, what is "x" anyway?

\bf \begin{array}{ccll}
amount&\%\\
\text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\
x&100\\
10.35&4.5
\end{array}\implies \cfrac{x}{10.35}=\cfrac{100}{4.5}\implies x=\cfrac{10.35\cdot 100}{4.5}
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Step-by-step explanation:

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She will use 5 bags
Hope this helps
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