Question

4pens &5pencils together cost Rs 25 Represent this the from of linear equation in two variables
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Answer 1

Answer:

4x+5y=25

Step-by-step explanation:

let the cost of each pen be indicated by x

so, for 4 pens its indicated by 4x

let the cost of each pencil be indicated by y

so, for 5 pens its indicated by 5y

So, the total sum is given by 4x+5y

but given that total amount is 25

∴ The equation turns 4x+5y=25

Hope it helps

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Answer 2

Step-by-step explanation:

let pens be x and pencils be y

4x+5y=25 (eq.)

x=25-5y/4

then substitute the value of x into the eq.