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Kisachek [45]
3 years ago
7

Jovan is 15 years old. His sister is 6 years older than one-third his age. How old is Jovan’s sister?

Mathematics
2 answers:
jek_recluse [69]3 years ago
4 0

Answer:

11.

Step-by-step explanation:

One third of 15 is 5. Add 6, to get 11.

Hope this helps.

lianna [129]3 years ago
4 0
His sister is 11 years old
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Yes -1 is a rational number. We can express it as a fraction of two whole numbers

One way is -1 = -1/1

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Point G is the centroid of the right △ABC with m∠C=90° and m∠B=30°. Find AG if CG=4 ft.
o-na [289]

Answer: \text{Length of AG=}\frac{2\sqrt{63}}{3}

Explanation:  

Please follow the diagram in attachment.  

As we know median from vertex C to hypotenuse is CM  

\therefore CM=\frac{1}{2}AB

We are given length of CG=4  

Median divide by centroid 2:1  

CG:GM=2:1  

Where, CG=4

\therefore GM=2 ft

Length of CM=4+2= 6 ft  

\therefore CM=\frac{1}{2}AB\Rightarrow AB=12

In \triangle ABC, \angle C=90^0

Using trigonometry ratio identities  

AC=AB\sin 30^0\Rightarrow AC=6 ft

BC=AB\cos 30^0\Rightarrow BC=6\sqrt{3} ft  

CN=\frac{1}{2}BC\Rightarrow CN=3\sqrt{3} ft

In \triangle CAN, \angle C=90^0  

Using pythagoreous theorem  

AN=\sqrt{6^2+(3\sqrt{3})^2\Rightarrow \sqrt{63}

Length of AG=2/3 AN

\text{Length of AG=}\frac{2\sqrt{63}}{3} ft


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What is the measure of angle DBC
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What is the median of the data set? 32, 41,43,50,70,73,80,88
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Answer:

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hope this helps

have a good day :)

Step-by-step explanation:

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