example 2) Romela went to a stationery
Shop and pueshased 2 pencils and 3
reasers for Rs.g her friend Sonale
saw the new variety of pencils and
exasers with Romila Д
bought a pencils and to eraseus of the
for
kepresent
Situation algebrically wind igsoplically.
s
Answers
hi I can solve it
Step-by-step explanation:
BUT YOU HAVE TO MARK ME AS BRAINLIST
Answer:
Step-by-step explanation:
Let the cost of one pencil = Rs. x
Let the cost of one eraser = Rs. y
Romila purchases 2 pencils and 3 erasers for Rs. 9
Cost of 2 pencils = 2x
Cost of 3 erasers = 3y
Total Cost = Rs. 9
So, we have:
2x + 3y = 9 ---(1)
Sonali purchases 4 pencils and 6 erasers for Rs 18.
Cost of 4 pencils = 4x
Cost of 6 erasers = 6y
Total Cost = 18
So, we have:
4x + 6y = 18
So, 2(2x + 3y) = 18
So, 2x + 3y = 9 ----(2)
Here, we see that both (1) and (2) are the same equation, which is:
This single equation has Infinitely Many Solutions, as it is a linear equation in two variables.
We can put any value of x, and find the corresponding value of y.
However, since x and y refer to Costs, we can only take positive values. We still can have infinite solutions.
For example,
If Cost of 1 pencil = Rs. 3 = x
Then
So, If Cost of one pencil = Rs. 3,
Then Cost of one eraser = Rs. 1
Similarly, we can take other values of one variable, and find corresponding values of other variable.
Hope it helps
Sshail
Brainly Community