Answer:
The correct option is option number 4. Parallel lines are defined as lines that never have one point in common.
Step-by-step explanation:
Parallel lines: Parallel lines are the lines that will never cross each other. As they never meet, so they won't have a common point.
On the other hand, the other options are incorrect. This is because,
Perpendicular lines: Perpendicular lines are the lines that make 90 degrees angle with each other.
Skew lines: Skew lines are the lines that are not present on the same plane.
Coplanar lines: Any lines which are known to occur on the same plane are termed as coplanar lines.
120 tennis racquets were sold for $ 18 each
<em><u>Solution:</u></em>
Let x = number that sell for $18 each
Then, 200 - x = number that sell for $33 each
<em><u>The total receipts form these sales were 4800 dollars</u></em>
Thus we frame a equation as:
number that sell for $18 each x 18 + number that sell for $33 each x 33 = 4800
![x \times 18 + (200-x) \times 33 = 4800\\\\Solve\ the\ above\ equation\ for\ x\\\\18x + 6600 - 33x = 4800\\\\Move\ the\ variables\ to\ one\ side\\\\18x-33x = 4800-6600\\\\-15x = -1800\\\\Divide\ both\ sides\ of\ equation\ by\ -15\\\\x = 120](https://tex.z-dn.net/?f=x%20%5Ctimes%2018%20%2B%20%28200-x%29%20%5Ctimes%2033%20%3D%204800%5C%5C%5C%5CSolve%5C%20the%5C%20above%5C%20equation%5C%20for%5C%20x%5C%5C%5C%5C18x%20%2B%206600%20-%2033x%20%3D%204800%5C%5C%5C%5CMove%5C%20the%5C%20variables%5C%20to%5C%20one%5C%20side%5C%5C%5C%5C18x-33x%20%3D%204800-6600%5C%5C%5C%5C-15x%20%3D%20-1800%5C%5C%5C%5CDivide%5C%20both%5C%20sides%5C%20of%5C%20equation%5C%20by%5C%20-15%5C%5C%5C%5Cx%20%3D%20120)
Thus 120 tennis racquets were sold for $ 18 each
Answer:
Step-by-step explanation:
I wonder if it is the minus that is causing the problem?
Let x = - 5
3*(-5) - 9
-15 - 9
This is a money question. If you are 15 dollars in debt and you spend another 9, where are you? (In the company of the American government. They do this all the time).
- 15 - 9 = - 24
Answer: It should be 3w - 6y + 3
Step-by-step explanation:
-Solve:
![2(w-3y+4)+w-5](https://tex.z-dn.net/?f=2%28w-3y%2B4%29%2Bw-5)
-Use Distributive Property:
![2(w-3y+4)+w-5](https://tex.z-dn.net/?f=2%28w-3y%2B4%29%2Bw-5)
![2w-6y+8+w-5](https://tex.z-dn.net/?f=2w-6y%2B8%2Bw-5)
-Then, combine like terms:
![2w-6y+8+w-5](https://tex.z-dn.net/?f=2w-6y%2B8%2Bw-5)
![3w-6y+3](https://tex.z-dn.net/?f=3w-6y%2B3)
Result:
![3w-6y+3](https://tex.z-dn.net/?f=3w-6y%2B3)