Answer:
160 off 20p coins
Step-by-step explanation:
- 1 p, 20 p, 5 p coins
- 1 p= 3/8 of the bag
- 5 p= 1 p= 3/8 of the bag
20 p coins= 640 - 640*(3/8+3/8)= 640*(1- 6/8)= 640 * 2/8= 640* 1/4= 160
Answer:
<h2>
0.6</h2>
solution,
![- ( - 27)d = 16.2 \\ or \: 27d = 16.2 \\ or \: d = \frac{16.2}{27} \\or \: d = \frac{3}{5} \: \\ d = 0.6](https://tex.z-dn.net/?f=%20-%20%28%20-%2027%29d%20%3D%2016.2%20%5C%5C%20or%20%5C%3A%2027d%20%3D%2016.2%20%5C%5C%20or%20%5C%3A%20d%20%3D%20%20%5Cfrac%7B16.2%7D%7B27%7D%20%20%5C%5Cor%20%5C%3A%20%20d%20%3D%20%20%5Cfrac%7B3%7D%7B5%7D%20%20%5C%3A%20%20%5C%5C%20d%20%3D%200.6)
hope this helps...
Good luck on your assignment..
Answer: 20/12
Step-by-step explanation: In order to get a 12 in the denominator
of 5/3, we multiply top and bottom of 5/3 by 4 to get 20/12.
So 20/12 is an equivalent fraction.
![x + 18 = - 97 \\ x = - 115](https://tex.z-dn.net/?f=x%20%20%2B%2018%20%3D%20%20-%2097%20%5C%5C%20x%20%3D%20%20-%20115)
Answer: -115 should be added to 18 to get a sum of -97.
Hope this helps. - M
Answer:
![y = 2x - 6](https://tex.z-dn.net/?f=y%20%3D%202x%20-%206)
Step-by-step explanation:
Given
Equation: ![y = 2x - 6](https://tex.z-dn.net/?f=y%20%3D%202x%20-%206)
Required
Determine the equation of Point: (5,4)
First, we need to determine the slope of ![y = 2x - 6](https://tex.z-dn.net/?f=y%20%3D%202x%20-%206)
The general form of an equation is ![y = mx + b](https://tex.z-dn.net/?f=y%20%3D%20mx%20%2B%20b)
Where m represents the slope;
Hence; ![m =2](https://tex.z-dn.net/?f=m%20%3D2)
Since the equation and the point are parallel. then they have the same slope (m).
![m = 2](https://tex.z-dn.net/?f=m%20%3D%202)
Next, is to determine the equation of the point, using the following formula:
![m = \frac{y - y_1}{x - x_1}](https://tex.z-dn.net/?f=m%20%3D%20%5Cfrac%7By%20-%20y_1%7D%7Bx%20-%20x_1%7D)
Where
![(x_1,y_1) = (5,4)](https://tex.z-dn.net/?f=%28x_1%2Cy_1%29%20%3D%20%285%2C4%29)
So, the equation becomes
![2 = \frac{y - 4}{x - 5}](https://tex.z-dn.net/?f=2%20%3D%20%5Cfrac%7By%20-%204%7D%7Bx%20-%205%7D)
Cross Multiply
![y - 4 = 2(x - 5)](https://tex.z-dn.net/?f=y%20-%204%20%3D%202%28x%20-%205%29)
Open Bracket
![y - 4 = 2x - 10](https://tex.z-dn.net/?f=y%20-%204%20%3D%202x%20-%2010)
Make y the subject of formula
![y = 2x - 10 + 4](https://tex.z-dn.net/?f=y%20%3D%202x%20-%2010%20%2B%204)
![y = 2x - 6](https://tex.z-dn.net/?f=y%20%3D%202x%20-%206)
Hence, the equation is ![y = 2x - 6](https://tex.z-dn.net/?f=y%20%3D%202x%20-%206)