Let the cost of a pen and a pencil be Rs. x and Rs. y respectively. Anuj pays Rs. 34 for 3 pens and 2pencils. Write the given data in the form of a linear equation in two variables. Also, represent it graphically.
Answers
Answered by
109
I can give you the equation and will tell how you can represent it but I cannot post the graph.
Cost if 1 pen = RS. x
cost of 3pens = RS. 3x
Cost of 1 pencil = RS. y
Cost of 2 pencils = RS. 2y
Total sum of the two costs = RS. 34
Therefore,
3x + 2y = 34.
The above is the equation.
To construct it's graph,
Find any two points.
For first point
Let x = 10.
30 + 2y = 34.
y= 2.
Point = (10,2)
Let x = 8.
24 + 2y = 34.
y = 5.
Point = (8,5)
Join these two points to get the line planted on the graph.
Cost if 1 pen = RS. x
cost of 3pens = RS. 3x
Cost of 1 pencil = RS. y
Cost of 2 pencils = RS. 2y
Total sum of the two costs = RS. 34
Therefore,
3x + 2y = 34.
The above is the equation.
To construct it's graph,
Find any two points.
For first point
Let x = 10.
30 + 2y = 34.
y= 2.
Point = (10,2)
Let x = 8.
24 + 2y = 34.
y = 5.
Point = (8,5)
Join these two points to get the line planted on the graph.
Answered by
4
Step-by-step explanation:
I can give you the equation and will tell how you can represent it but I cannot post the graph.
Cost if 1 pen = RS. x
cost of 3pens = RS. 3x
Cost of 1 pencil = RS. y
Cost of 2 pencils = RS. 2y
Total sum of the two costs = RS. 34
Therefore,
3x + 2y = 34.
The above is the equation.
To construct it's graph,
Find any two points.
For first point
Let x = 10.
30 + 2y = 34.
y= 2.
Point = (10,2)
Let x = 8.
24 + 2y = 34.
y = 5.
Point = (8,5)
Join these two points to get the line planted on the graph.
Similar questions