Cost of a pencil is 3 times the cost of an eraser. Represent this in the form of a linear equation in two variables. Also, find four solutions of the above equation.
Answers
Answered by
7
cost of eraser is x
cost of pencil is 3x=x
solutions
if x=1
3x=3
x=4
3x=12
x=5
3x=15
x=15
3x=45
cost of pencil is 3x=x
solutions
if x=1
3x=3
x=4
3x=12
x=5
3x=15
x=15
3x=45
Sreesan:
same again 3x=x is not possible until x=0
bro it is given the cost od perncil is three times the cost of eraser
even u have given the sae thing
just the change of variable
but i didnt assign it that's it
Answered by
7
Let the cost of eraser be x and pencil be y
so y=3x
if x=1 then y=3,, x=2 then y=6,, y=1 then x=/3 ,, y=2 then x=2/3
so y=3x
if x=1 then y=3,, x=2 then y=6,, y=1 then x=/3 ,, y=2 then x=2/3
Similar questions