Answer:
x = -7/6
Step-by-step explanation:
1. Subtract 5.
-6x = 3 + 4
2. Simplify by adding
-6x = 7
3. Divide by -6
x = -7/6
3 and 4 hope this helps :)
To find the answer you will have to multiply 800 by 10. 800 multiplied by 10 equals 8,000
The final answer is : The skyway express train travels about 8,000 miles in 10 days
Keywords
triangle,perimeter,distance, length, side, points
we know that
The <u>perimeter</u> of a<u> triangle</u> is the sum of the three <u>length</u> <u>side</u>
To find the<u> length</u> <u>side</u> calculate the <u>distance</u> between two <u>points</u>
The formula to calculate the <u>distance</u> between to <u>points</u> is equal to
![d=\sqrt{(y2-y1)^{2}+(x2-x1)^{2}}](https://tex.z-dn.net/?f=d%3D%5Csqrt%7B%28y2-y1%29%5E%7B2%7D%2B%28x2-x1%29%5E%7B2%7D%7D)
Step 1
Find the <u>distance</u> ZY
substitute the values
![d=\sqrt{(1-0)^{2}+(3-1)^{2}}](https://tex.z-dn.net/?f=d%3D%5Csqrt%7B%281-0%29%5E%7B2%7D%2B%283-1%29%5E%7B2%7D%7D)
![dZY=\sqrt{5}\ units](https://tex.z-dn.net/?f=dZY%3D%5Csqrt%7B5%7D%5C%20units)
Step 2
Find the <u>distance</u> XY
substitute the values
![d=\sqrt{(1-4)^{2}+(3+1)^{2}}](https://tex.z-dn.net/?f=d%3D%5Csqrt%7B%281-4%29%5E%7B2%7D%2B%283%2B1%29%5E%7B2%7D%7D)
Step 3
Find the <u>perimeter</u> of the <u>triangle</u>
![P=ZX+ZY+XY](https://tex.z-dn.net/?f=P%3DZX%2BZY%2BXY)
we have
![dZX=2\sqrt{5}\ units](https://tex.z-dn.net/?f=dZX%3D2%5Csqrt%7B5%7D%5C%20units)
![dZY=\sqrt{5}\ units](https://tex.z-dn.net/?f=dZY%3D%5Csqrt%7B5%7D%5C%20units)
Substitute
![P=(2\sqrt{5}+\sqrt{5}+5)\ units](https://tex.z-dn.net/?f=P%3D%282%5Csqrt%7B5%7D%2B%5Csqrt%7B5%7D%2B5%29%5C%20units)
therefore
the answer is
![P=(3\sqrt{5}+5)\ units](https://tex.z-dn.net/?f=P%3D%283%5Csqrt%7B5%7D%2B5%29%5C%20units)
About 3,000 books because 105 * 28 = 2940
and 2940 rounded to the nearest thousand is 3000. Hope this helps.