<h2>
Answer:</h2><h2>
The answer is 3.14..</h2><h2>
For finding it you have to divide the given numbers.</h2>
This is also a value of π (pi)
Answer:
![CD = 3](https://tex.z-dn.net/?f=CD%20%3D%203)
Step-by-step explanation:
Given
![CD = x](https://tex.z-dn.net/?f=CD%20%3D%20x)
![BC = 5x - 5](https://tex.z-dn.net/?f=BC%20%3D%205x%20-%205)
![BD = 2x + 7](https://tex.z-dn.net/?f=BD%20%3D%202x%20%2B%207)
Required
Determine CD
Since, C is a point on BD, the relationship between the given parameters is;
![BD = BC + CD](https://tex.z-dn.net/?f=BD%20%3D%20BC%20%2B%20CD)
Substitute the values of BD, BC and CD
![2x + 7 = 5x - 5 + x](https://tex.z-dn.net/?f=2x%20%2B%207%20%3D%205x%20-%205%20%2B%20x)
Collect Like Terms
![2x - 5x - x = -5 - 7](https://tex.z-dn.net/?f=2x%20-%205x%20-%20x%20%3D%20-5%20-%207)
![-4x = -12](https://tex.z-dn.net/?f=-4x%20%3D%20-12)
Divide both sides by -4
![\frac{-4x}{-4} = \frac{-12}{-4}](https://tex.z-dn.net/?f=%5Cfrac%7B-4x%7D%7B-4%7D%20%3D%20%5Cfrac%7B-12%7D%7B-4%7D)
![x = 3](https://tex.z-dn.net/?f=x%20%3D%203)
To determine the length of CD;
Substitute 3 for x in ![CD = x](https://tex.z-dn.net/?f=CD%20%3D%20x)
Hence;
![CD = 3](https://tex.z-dn.net/?f=CD%20%3D%203)
Step-by-step explanation:
Hey there!
According to the question, you need to find out the distance from your friend's house to school.
<em>Firstly figure out the coordinate of your school and school. Then use formula of distance.</em>
So, we find the coordinates as (7,7) and (5,0).
So, x 1 = 7 y1= 7
x 2 = 5 y2 = 0
~ Use distance formula.
![d = \sqrt{( {x2 - x1)}^{2} + ( {y2 - y1)}^{2} }](https://tex.z-dn.net/?f=d%20%3D%20%20%5Csqrt%7B%28%20%7Bx2%20-%20x1%29%7D%5E%7B2%7D%20%20%2B%20%28%20%7By2%20-%20y1%29%7D%5E%7B2%7D%20%7D%20)
~ Put all values.
![d = \sqrt{ {(5 - 7)}^{2} + ( {0 - 7)}^{2} }](https://tex.z-dn.net/?f=d%20%3D%20%20%5Csqrt%7B%20%7B%285%20-%207%29%7D%5E%7B2%7D%20%20%2B%20%28%20%7B0%20-%207%29%7D%5E%7B2%7D%20%7D%20)
~ Simplify it.
![d = \sqrt{ {( - 2)}^{2} + {( - 7)}^{2} }](https://tex.z-dn.net/?f=d%20%3D%20%20%5Csqrt%7B%20%7B%28%20-%202%29%7D%5E%7B2%7D%20%20%2B%20%20%7B%28%20-%207%29%7D%5E%7B2%7D%20%7D%20)
![d = \sqrt{4 + 49}](https://tex.z-dn.net/?f=d%20%3D%20%20%5Csqrt%7B4%20%2B%2049%7D%20)
![d = \sqrt{53}](https://tex.z-dn.net/?f=d%20%3D%20%20%5Csqrt%7B53%7D%20)
D= 7.280
Therefore, the distance between your friend's house and your school is 7.3 units.
<em><u>Hope</u></em><em><u> </u></em><em><u>it</u></em><em><u> helps</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em>
11/15-2/5
Multiply 2 and 5 to get a common denominator of 15
11/15-6/15
=4/15
8+5+8=21 coins in total.
8/21*7/20=
56/420=
2/15. Hope this helps, and PM me if something's not clear!