Answer:
K = 43
Step-by-step explanation:
We'll begin by determining the gradient of the equation 5y + 4x = 8. This can be obtained as follow:
5y + 4x = 8
Rearrange
5y = 8 – 4x
5y = –4x + 8
Comparing 5y = –4x + 8 with y = mx + c, the gradient m is –4
Next, we shall determine the gradient of the line perpendicular to the line with equation 5y = 8 – 4x.
This can be obtained as follow:
For perpendicular lines, their gradient is given by:
m1 × m2 = – 1
With the above formula, we can obtain the gradient of the line as follow:
m1 × m2 = – 1
m1 = –4
–4 × m2 = – 1
Divide both side by –4
m2 = –1/–4
m2 = 1/4
Finally, we shall determine the value of k as follow:
Coordinate => (k, 4) and (3, –6)
x1 coordinate = k
y1 coordinate = 4
x2 coordinate = 3
y2 coordinate = –6
Gradient (m) = 1/4
m = (y2 – y1) / (x2 – x1)
1/4 = (–6 – 4) / (3 – K)
1/4 = –10 /(3 – K)
Cross multiply
3 – K = 4 × –10
3 – K = –40
Collect like terms
– K = – 40 –3
–k = –43
Divide both side by – 1
K = –43/–1
k = 43
Answer:
l not know english and hindi patriotic poems in
First you find the median, the middle term (if there are an even number of terms it is the average of the middle two terms.) Since you have 21 terms, odd, you just use the middle term, in this case 8. The first quartile works the same way, but just on the left half between the start and the median...so the first quartile is 6.
Answer:
Prafulla Chandra Ghosh
Step-by-step explanation:
(24 December 1891–18 December 1983) was the first Chief Minister of West Bengal, India.
Answer:
A sandwich costs $7.5
Step-by-step explanation:
Given
Represent chips with c and sandwiches with c
![c = \$1.25](https://tex.z-dn.net/?f=c%20%3D%20%5C%241.25)
![Total = \$38.75](https://tex.z-dn.net/?f=Total%20%3D%20%5C%2438.75)
From the question, we understand that 5 sandwiches were ordered.
Hence, the question of the system is:
![5s + c = Total](https://tex.z-dn.net/?f=5s%20%2B%20c%20%3D%20Total)
Substitute values for Total and c
![5s + 1.25 = 38.75](https://tex.z-dn.net/?f=5s%20%2B%201.25%20%3D%2038.75)
Collect Like Terms
![5s = 38.75 - 1.25](https://tex.z-dn.net/?f=5s%20%20%3D%2038.75%20-%201.25)
![5s = 37.5](https://tex.z-dn.net/?f=5s%20%20%3D%2037.5)
Divide both sides by 5
![s = \frac{37.5}{5}](https://tex.z-dn.net/?f=s%20%3D%20%5Cfrac%7B37.5%7D%7B5%7D)
![s = 7.5](https://tex.z-dn.net/?f=s%20%3D%207.5)