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Answer:
let x1=2, y1 = -6 ,x2 = -1, y2 = 6
first we find gradient of the line
gradient = (y2-y1) / (x2 -x1)
(6-(-6))/(-1-2)
(6+6)/(-3)
12/-3
-4
equation is;
M=( y-y1)/(x-x1)
whereM is a gradient
we substitute
-4=(y-(-6))/(x-2(
-4=(y+6)/(x-2)
by cross multiplication
-4(x-2)=(y+6)
-4x+8=y+6
-4x+8-6-y=0
-4x-y+2=0
The answer to this is A. a hot spot
Hope this helped!! ☺♥
Answer:
Given :
A man buys a few number of books at RS 72 each and a few number of pens at RS 25 each .
To Find :
If he buys 11 articles and pays RS 510 altogether,find the number of each article bought by him .
Solution:
Total no. of article = 11
Let x be the no. of books bought for RS 72 each
So, No. of pens bought for RS 25 each = 11-x
Cost of x books = 72x
Cost (11-x) pens = 25(11-x)
He buys 11 articles and pays RS 510 altogether
So,72x+25(11-x)=510
72x+275-25x=510
47x=510-275
x=5
So,No. of pens bought for RS 25 each = 11-x=11-5=6
Hence 6 pens and 5 books were bought by him.
Step-by-step explanation: