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melomori [17]
3 years ago
14

Please awnser quqestion almost done asking questions

Mathematics
1 answer:
grigory [225]3 years ago
4 0

Answer:

12 feet

Step-by-step explanation:

Use the Pythagorean Theorem.

5² + x² = 13²

25 + x² = 169

169 - 25 = 144

√144 = 12

12 feet

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Write 3.274 x 10^3 as an ordinary number
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327.4

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3 years ago
There are five boys to every three girls in an introductory chinese course. if there are 384 students enrolled in the course, ho
alex41 [277]

Answer:

There are 240 boys.

Step-by-step explanation:

There are five boys to every three girls in an introductory Chinese course. Given that there are 384 students enrolled in total, we want to determine the amount of students which are boys.

Let <em>b</em> represent the number of boys and <em>g</em> girls.

Since the ratio is 5:3, we can write that:

\displaystyle \frac{5}{3} = \frac{b}{g}

And since the total number of students is 384:

b + g = 384

From the first equation, cross-multiply:

5g = 3b

Solve for <em>g: </em>

<em />\displaystyle g = \frac{3}{5} b<em />

Substitute:

\displaystyle b + \left (\frac{3}{5} b\right) = 384

Simplify:

\displaystyle \frac{8}{5} b = 384

Solve for <em>b: </em>

<em />\displaystyle b = \frac{5}{8}\left(384\right) = 240<em />

<em />

In conclusion, 240 of the total students are boys.

4 0
3 years ago
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