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kenny6666 [7]
3 years ago
7

Can someone give me a step by step answer on how they figured this out so I understand it PLEASE???

Mathematics
1 answer:
Dimas [21]3 years ago
6 0

Answer:

25 mph

Step-by-step explanation:

The slope of the line gives the rate of change (speed) of the train

From the graph note that after 6 hours the distance travelled is 150 miles

Thus slope = \frac{150}{6} = 25

The train is travelling at 25 mph

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Consider the survey descriptions shown. Survey 1: A township employee surveys all 118 workers at a shopping mall to learn about
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Answer:

3,2,1

Step-by-step explanation:

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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.
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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


5 0
3 years ago
Alexis has a pocket full of coins that consists of dimes and nickels. She has a total of 40 coins. The total value of her coins
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Answer

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Step-by-step explanation:


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3 years ago
A group of students are meeting in the cafeteria. 70 students have already arrived. This is 35% of the group. How many are in th
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To find this, you divide 70 by 0.35 (35%). This will give you 200. To check this, multiply 200 by 0.35 and you will get 70. Thus making 200 the answer.

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3 years ago
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Solve this question <br>a=7+3​
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Answer:

<h2>10</h2>

Step-by-step explanation:

<em>The answer is 10 because 7 + 3 equals 10!</em>

<em></em>

<em>This can be proven by adding 7 + 3 or by subtracting in a certain way.</em>

<em>7 + 3 = ?</em>

<em>7 + 1 = 8</em>

<em>7 + 2 = 9</em>

<em>7 + 3 = 10</em>

<em></em>

<em>You can show more work by subtracting your answer or 10 in this case, which means that you subtract 7 by 10 or 3 by 10, either way is ok.</em>

<em></em>

<em>If you subtract 7 by 10, ( 10 - 7 ) then you get 3</em>

<em>If you subtract 3 by 10, ( 10 - 3 ) then you get 7</em>

<em>If the number you subtracted matches the number that you didn't subtract, then your answer is correct.</em>

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<em>Hope this helps! <3</em>

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